MAX4460ETT+ [MAXIM]
Instrumentation Amplifier, 1 Func, 1900uV Offset-Max, 2.5MHz Band Width, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-229WEEA, TDFN-6;型号: | MAX4460ETT+ |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | Instrumentation Amplifier, 1 Func, 1900uV Offset-Max, 2.5MHz Band Width, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-229WEEA, TDFN-6 放大器 信息通信管理 |
文件: | 总20页 (文件大小:418K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
19-2279; Rev 4; 3/06
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
General Description
Features
♦ Tiny 6-Pin SOT23 and TDFN Packages
The MAX4460/MAX4461/MAX4462 are instrumentation
amplifiers with precision specifications, low-power con-
sumption, and excellent gain-bandwidth product.
Proprietary design techniques allow ground-sensing
capability combined with ultra-low input current and
increased common-mode rejection performance. These
rail-to-rail output instrumentation amplifiers are offered in
fixed or adjustable gains and the option for either a shut-
down mode or a pin to set the output voltage relative to
an external reference (see the Ordering Information and
Selector Guide).
♦ Input Negative Rail Sensing
♦ 1pA (typ) Input Bias Current
♦ 100µV Input Offset Voltage
♦ Rail-to-Rail Output
♦ 2.85V to 5.25V Single Supply
♦ 700µA Supply Current
♦
0.1ꢀ ꢁain ꢂrror
♦ 2.5MHz ꢁain-Bandwidth Product
♦ 18nV/√Hz Input-Referred Noise
The MAX4460 has an adjustable gain and uses ground
as its reference voltage. The MAX4461 is offered in fixed
gains of 1, 10, and 100, uses ground as its reference volt-
age, and has a logic-controlled shutdown input. The
MAX4462 is offered in fixed gains of 1, 10, and 100 and
has a reference input pin (REF). REF sets the output volt-
age for zero differential input to allow bipolar signals in
single-supply applications.
Ordering Information
TꢂMP
RANꢁꢂ
PIN-
TOP
PART
PACKAꢁꢂ
MARK
MAX4460ETT+T
MAX4460EUT-T
MAX4460ESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
6 TDFN-EP*
6 SOT23-6
8 SO
+ANI
AASS
—
The MAX4460/MAX4461/MAX4462 have high-impedance
inputs optimized for small-signal differential voltages. The
MAX4461/MAX4462 are factory trimmed to gains of 1, 10,
or 100 (suffixed U, T, and H) with 0.1ꢀ accuracy. The
typical offset of the MAX4460/MAX4461/MAX4462 is
100µV. All devices have a gain-bandwidth product of
2.5MHz.
MAX4461UETT+T -40°C to +85°C
6 TDFN-EP* +ANJ
MAX4461UEUT-T
MAX4461UESA
MAX4461TETT+T
MAX4461TEUT-T
MAX4461TESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
6 SOT23-6
8 SO
AAST
—
6 TDFN-EP* +ANK
6 SOT23-6
8 SO
AASU
—
These amplifiers operate with a single-supply voltage
from 2.85V to 5.25V and with a quiescent current of only
700µA (less than 1µA in shutdown for the MAX4461). The
MAX4462 can also be operated with dual supplies.
Smaller than most competitors, the MAX4460/
MAX4461/MAX4462 are available in space-saving 6-pin
SOT23 and TDFN packages.
MAX4461HETT+T -40°C to +85°C
6 TDFN-EP* +ANL
MAX4461HEUT-T
MAX4461HESA
-40°C to +85°C
-40°C to +85°C
6 SOT23-6
8 SO
AASV
—
+Denotes lead-free package.
*EP = Exposed paddle.
________________________Applications
Industrial Process Control
Ordering Information continued at end of data sheet.
Strain-Gauge Amplifiers
Typical Application Circuits
Transducer Interface
V
Precision Low-Side Current Sense
Low-Noise Microphone Preamplifier
Differential Voltage Amplification
Battery-Powered Medical Equipment
CC
V
+ ∆V
- ∆V
3
4
CM
5
2
MAX4462
1
OUT
6
V
CM
Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.
REF
Typical Application Circuits continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
ABSOLUTꢂ MAXIMUM RATINꢁS
Supply Voltage (V
to V ) ...................................-0.3V to +6V
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s)....................................300°C
DD
SS
All Other Pins ...................................(V - 0.3V) to (V
+ 0.3V)
SS
DD
Output Short-Circuit Duration to Either Supply.........................1s
Continuous Power Dissipation (T = +70°C)
A
6-Pin SOT23 (derate 8.7mW/°C above +70°C)............695mW
6-Pin TDFN-EP (derate 18.2mW/°C above +70°C)....1454mW
8-Pin SO (derate 5.9mW/°C above +70°C)..................470mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4460/MAX4461
(V
= 5V, V
= 0V, V
= V
- V
= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G =100,
IN-
DD
CM
DIFF
IN+
MAX4460 is configured for G = 10, R = 200kΩ to GND, T = +25°C, unless otherwise noted.)
L
A
PARAMꢂTꢂR
Supply Voltage
SYMBOL
CONDITIONS
Guaranteed by PSRR test
MIN
TYP
MAX
5.25
1.1
UNITS
V
2.85
V
DD
V
V
= 5V, V
= 3V, V
= 0V
= 0V
0.80
0.68
0.1
50
DD
DD
DIFF
DIFF
Supply Current
mA
µA
0.9
Shutdown Supply Current
MAX4461, SHDN = GND
MAX4460ESA
V
= 5V
1
DD
425
300
600
Input Offset Voltage (Note 1)
V
µV
MAX4461ESA
50
OS
MAX446_EUT/MAX446_ETT
100
2
Differential mode
Common mode
Input Resistance
R
V
= V /2
GΩ
V
IN
CM
DD
2
V
-
DD
Input Common-Mode Range
V
Guaranteed by CMRR test
-0.1
CM
1.7
Input Common-Mode
Rejection Ratio
CMRR
PSRR
V
V
= -0.1V to (V
- 1.7V)
90
80
120
dB
CM
DD
DD
Power-Supply Rejection Ratio
Input Bias Current
= 2.85V to 5.25V
100
1
dB
pA
pA
I
(Note 2)
100
100
B
FB Input Current
MAX4460 (Note 2)
1
0.7 X
V
DD
V
MAX4461
MAX4461
IH
SHDN Logic Levels
V
0.3 X
V
IL
V
DD
SHDN Input Current
MAX4461, V
f = 10kHz
f = 1kHz
= 0V or V (Note 2)
1
18
38
1
100
pA
SHDN
DD
Input Voltage Noise
e
nV/√Hz
n
R = 200kΩ
L
2.5
5
V
V
- V
(Note 3)
OH
DD
OH
R = 20kΩ
L
3
Output Voltage Swing
Short-Circuit Current
mV
mA
R = 200kΩ
L
0
0.2
0.2
V
OL
R = 20kΩ
L
0
I
(Note 4)
150
SC
2
_______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4460/MAX4461 (continued)
(V
= 5V, V
= 0V, V
= V
- V
= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G =100,
IN-
DD
CM
DIFF
IN+
MAX4460 is configured for G = 10, R = 200kΩ to GND, T = +25°C, unless otherwise noted.)
L
A
PARAMꢂTꢂR
SYMBOL
CONDITIONS
MIN
TYP
0.1
MAX
0.3
UNITS
G = 1V/V, MAX4461UESA
G = 10V/V, MAX4461TESA
G = 100V/V, MAX4461HESA
G = 10V/V, MAX4460ESA
MAX446_EUT/MAX446_ETT
0.12
0.15
0.15
0.15
0.05
100
2500
250
25
0.35
0.6
Gain Error
R = 20kΩ
ꢀ
L
0.35
0.6
Nonlinearity (Note 1)
R = 20kΩ
L
0.15
ꢀ
Maximum Capacitive Load
C
No sustained oscillations
G = 1V/V, MAX4461U
pF
L
-3dB Bandwidth
Gain-Bandwidth Product
Slew Rate
BW
C = 100pF
L
kHz
MHz
V/µs
G = 10V/V, MAX4461T
G = 100V/V, MAX4461H
-3dB
GBWP
SR
C = 100pF
L
2.5
G = 1V/V
0.5
C = 100pF
L
G = 10V/V
G = 100V/V
G = 1V/V
0.5
0.25
15
C = 100pF,
L
Settling Time
t
within 0.1ꢀ of G = 10V/V
final value
75
µs
S
G = 100V/V
250
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4460/MAX4461
(V
= 5V, V
= 0V, V
= V
- V
= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G = 100,
DD
CM
DIFF
IN+
IN-
MAX4460 is configured for G = 10, R = 200kΩ to GND, T = T
to T
, unless otherwise noted.)
MAX
L
A
MIN
PARAMꢂTꢂR
Supply Voltage
SYMBOL
V
CONDITIONS
Guaranteed by PSRR test
MIN
TYP
MAX
5.25
1.4
UNITS
2.85
V
DD
V
V
= 5V, V
= 3V, V
= 0V
= 0V
DD
DD
DIFF
DIFF
Supply Current
mA
µA
1.15
MAX4461,
SHDN = GND
Shutdown Supply Current
V
= 5V
1
DD
T
= 0°C to +85°C
750
950
750
500
500
950
750
750
1400
1900
A
MAX4460ESA
T
A
= -40°C to +85°C
G = 1
T
A
= 0°C to
G = 10
G = 100
G = 1
+85°C
Input Offset Voltage (Note 1)
Input Offset-Voltage Drift
V
MAX4461ESA
µV
OS
T
A
= -40°C to
G = 10
G = 100
+85°C
T
T
= 0°C to +85°C
A
MAX446_EUT/
MAX446_ETT
= -40°C to +85°C
A
TC
(Note 1)
1.5
µV/°C
VOS
_______________________________________________________________________________________
3
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4460/MAX4461 (continued)
(V
= 5V, V
= 0V, V
= V
- V
= 50mV to 100mV for G = 1, 20mV to 100mV for G = 10, 2mV to 48mV for G = 100,
DD
CM
DIFF
IN+
IN-
MAX4460 is configured for G = 10, R = 200kΩ to GND, T = T
to T
, unless otherwise noted.)
MAX
L
A
MIN
PARAMꢂTꢂR
SYMBOL
CONDITIONS
Guaranteed by CMRR test
MIN
TYP
MAX
UNITS
V
-
DD
Input Common-Mode Range
V
-0.1
V
CM
1.85
Input Common-Mode Rejection
Ratio
CMRR
PSRR
V
V
= -0.1V to (V
- 1.85V)
80
75
dB
CM
DD
DD
Power-Supply Rejection Ratio
Input Bias Current
= 2.85V to 5.25V
dB
pA
pA
I
(Note 2)
100
100
B
FB Input Current
MAX4460 (Note 2)
0.7 X
V
DD
V
MAX4461
MAX4461
IH
SHDN Logic Levels
SHDN Input Current
Output Voltage Swing
V
0.3 X
V
DD
V
IL
MAX4461, V
= 0V or V (Note 2)
100
4
pA
mV
SHDN
DD
R = 200kΩ
L
V
- V
OH
DD
V
OH
(Note 3)
R = 20kΩ
L
8
R = 200kΩ
L
0.25
0.25
0.8
1.6
0.8
1.7
1.0
2.0
0.8
2.0
V
OL
R = 20kΩ
L
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
MAX4461UESA,
R = 20kΩ
L
MAX4461TESA,
R = 20kΩ
L
MAX4461HESA,
R = 20kΩ
L
Gain Error
ꢀ
ꢀ
MAX4460ESA,
R = 20kΩ
L
MAX446_EUT/
MAX446_ETT,
R = 20kΩ
L
T
T
= 0°C to +85°C
1.8
3.0
A
= -40°C to +85°C
A
T
T
= 0°C to +85°C
0.20
0.25
A
R = 20kΩ
L
Nonlinearity
(Note 1)
= -40°C to +85°C
A
4
_______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4462
(V
= 5V, V = 0V, V
= V
= V /2, R = 100kΩ to V /2, T = +25°C, unless otherwise noted. V
= V - V = -100mV
IN+ IN-
DD
SS
CM
REF
L
A
DIFF
DD
DD
to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.)
PARAMꢂTꢂR SYMBOL
Supply Voltage
CONDITIONS
MIN
TYP
MAX
5.25
UNITS
V
Guaranteed by PSRR test
2.85
V
DD
V
V
= 5V, V
= 3V, V
= 0V
= 0V
0.8
0.68
50
1.1
0.9
250
500
DD
DD
DIFF
DIFF
Supply Current
mA
µV
GΩ
V
MAX4462_ESA
Input Offset Voltage (Note 1)
Input Resistance
V
OS
MAX4462_EUT/MAX4462_ETT
Differential mode
100
2
R
V
= V /2
CM DD
IN
Common mode
2
V
0.1
-
V
1.7
-
-
SS
DD
Input Common-Mode Range
REF Input Range
V
Guaranteed by Input CMRR test
Guaranteed by REF rejection test
CM
V
+
V
DD
SS
V
0.1
1.7
Input Common-Mode
Rejection Ratio
CMRR
PSRR
V
= (V - 0.1V) to (V
DD
- 1.7V)
- 1.7V)
90
120
dB
CM
SS
REF Input Rejection Ratio
Power-Supply Rejection Ratio
Input Bias Current
V
V
= (V + 0.1V) to (V
SS
85
80
100
100
1
dB
dB
pA
CM
DD
DD
= 2.85V to 5.25V
I
(Note 2)
f = 10kHz
f = 1kHz
100
B
18
Input Voltage Noise
e
nV/√Hz
N
38
R = 100kΩ
1
2.5
5
L
V
- V
OH
DD
V
OH
(Note 3)
R = 10kΩ
L
3
Output Voltage Swing
Short-Circuit Current
Gain Error
mV
mA
ꢀ
R = 100kΩ
2
4
L
V
- V
OL
SS
V
OL
(Note 3)
R = 10kΩ
L
6
12
I
(Note 4)
150
0.1
0.12
0.15
0.15
0.05
SC
G = 1V/V, MAX4462UESA
G = 10V/V, MAX4462TESA
G = 100V/V, MAX4462HESA
MAX4462_EUT/MAX4462_ETT
0.30
0.35
0.5
R = 10kΩ
L
0.5
Nonlinearity
R = 10kΩ
0.15
ꢀ
L
_______________________________________________________________________________________
5
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4462 (continued)
(V
= 5V, V = 0V, V
= V
= V /2, R = 100kΩ to V /2, T = +25°C, unless otherwise noted. V
= V - V = -100mV
IN+ IN-
DD
SS
CM
REF
L
A
DIFF
DD
DD
to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.)
PARAMꢂTꢂR
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Capacitive Load
C
No sustained oscillations
100
2500
250
25
pF
L
G = 1V/V, MAX4462U
G = 10V/V, MAX4462T
G = 100V/V, MAX4462H
-3dB Bandwidth
Gain-Bandwidth Product
Slew Rate
BW
C = 100pF
L
kHz
MHz
V/µs
-3dB
GBWP
SR
C = 100pF
L
2.5
G = 1V/V, MAX4462U
G = 10V/V, MAX4462T
G = 100V/V, MAX4462H
G = 1V/V, MAX4462U
G = 10V/V, MAX4462T
G = 100V/V, MAX4462H
0.5
C = 100pF
0.5
L
0.25
15
C = 100pF,
L
within 0.1ꢀ of
final value
Settling Time
t
µs
75
S
250
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4462
(V
V
= 5V, V
= 0V, V
= V
= V /2, R = 100kΩ to V /2, T = T
to T
, unless otherwise noted. V
=
DIFF
CM
REF
L
A
MIN
MAX
DD
SS
DD
DD
- V = -100mV to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.) (Note 5)
IN-
IN+
PARAMꢂTꢂR
SYMBOL
CONDITIONS
Guaranteed by PSRR test
MIN
TYP
MAX
UNITS
Supply Voltage
Supply Current
V
2.85
5.25
V
DD
OS
V
V
= 5V, V
= 3V, V
= 0V
= 0V
1.4
DD
DD
DIFF
DIFF
mA
µV
1.15
500
T
A
T
A
T
A
T
A
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
MAX4462_ESA
750
Input Offset Voltage (Note 1)
V
1100
1300
MAX4462_EUT/
MAX4462_ETT
Input Offset Voltage Drift
TCV
(Note 1)
1.5
µV/°C
V
OS
V
0.1
-
V
1.85
-
DD
SS
Input Common-Mode Range
V
Guaranteed by input CMRR test
Guaranteed by REF rejection test
CM
V
+
V
1.85
-
DD
SS
REF Input Range
V
0.1
Input Common-Mode
Rejection Ratio
CMRR
PSRR
V
= (V – 0.1V) to (V
- 1.85V)
- 1.85V)
DD
80
dB
CM
SS
DD
REF Input Rejection Ratio
Power-Supply Rejection Ratio
Input Bias Current
V
V
= (V + 0.1V) to (V
SS
75
75
dB
dB
pA
CM
DD
= 2.85V to 5.25V
I
(Note 2)
100
B
6
_______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
ꢂLꢂCTRICAL CHARACTꢂRISTICS—MAX4462 (continued)
(V
V
= 5V, V
= 0V, V
= V
= V /2, R = 100kΩ to V /2, T = T
to T
, unless otherwise noted. V
=
DIFF
CM
REF
L
A
MIN
MAX
DD
SS
DD
DD
- V = -100mV to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.) (Note 5)
IN-
IN+
PARAMꢂTꢂR
SYMBOL
CONDITIONS
R = 100kΩ
MIN
TYP
MAX
4
UNITS
L
V
- V
OH
DD
V
OH
(Note 3)
R = 10kΩ
L
8
Output Voltage Swing
mV
R = 100kΩ
L
8
V
- V
SS
OL
V
OL
(Note 3)
R = 10kΩ
L
16
0.8
1.6
0.8
1.7
0.8
1.7
T
A
T
A
T
A
T
A
T
A
T
A
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
R = 10kΩ,
L
MAX4462UESA
R = 10kΩ,
MAX4462TESA
L
Gain Error
GE
NL
ꢀ
ꢀ
R = 10kΩ,
L
MAX4462HESA
R = 10kΩ,
T
T
= 0°C to +85°C
1.8
3.0
L
A
MAX4462_EUT/
= -40°C to +85°C
A
MAX4462_ETT
T
T
= 0°C to +85°C
0.2
A
Nonlinearity
R = 10kΩ
L
= -40°C to +85°C
0.25
A
Note 1: Offset Voltage is measured with a best straight-line (BSL) method (see A User Guide to Instrumentation Amplifier Accuracy
Specifications section).
Note 2: IN+ and IN- are gates to CMOS transistors with typical input bias current of 1pA. CMOS leakage is so small that it is
impractical to test and guarantee in production. Limits shown are guaranteed by design. However, devices are functionally
screened during production testing to eliminate defective units.
Note 3: Output swing high is measured only on G = 100 devices. Devices with G = 1 and G = 10 have output swing high limited by
the range of V
, V , and V
(see Output Swing section).
REF CM
DIFF
Note 4: Short-circuit duration limited to 1s (see Absolute Maximum Ratings).
Note 5: SOT23 and TDFN units are 100ꢀ production tested at +25°C. Limits over temperature are guaranteed by design.
_______________________________________________________________________________________
7
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Typical Operating Characteristics
(V
= 5V, V = 0V, V + = V = V
= V /2, R = 100kΩ to V /2, T = +25°C, unless otherwise noted. V
= V
- V
=
IN
-
DD
SS
IN
REF
DD
L
DD
A
DIFF
IN+
IN-
-100mV to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.)
GAIN ERROR HISTOGRAM
VOLTAGE OFFSET HISTOGRAM
VOLTAGE OFFSET DRIFT HISTOGRAM
18
16
14
12
10
8
12
10
8
16
14
12
10
8
A = 100
V
6
6
6
4
4
4
2
2
2
0
0
0
0.2
0.3 0.4 0.5
-0.5 -0.4
-0.3
-0.2 -0.1
0
0.1
-5 -4 -3 -2 -1
0
1
2
3
4
5
VOLTAGE OFFSET DRIFT (µV/°C)
GAIN ERROR (%)
VOLTAGE OFFSET (µV)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
POWER-SUPPLY REJECTION RATIO
VS. FREQUENCY
GAIN-LINEARITY HISTOGRAM
-20
-30
16
14
0
A
= 1V/V
V
A
= 1V/V
V
-20
-40
-50
-60
-70
-80
12
10
-40
-60
8
6
4
2
0
-90
-100
-110
-80
-100
-120
-120
-130
0.1
1
10
100
1k
10k
0
0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
LINEARITY (%)
0.01
0.1
1
10
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
INPUT VOLTAGE NOISE
vs. FREQUENCY
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
PEAK-TO-PEAK NOISE (0.1Hz TO 10Hz)
0.045
0.040
0.035
0.030
0.025
0.020
10,000
1000
100
10
INPUT REFERRED
G = 1, 10, OR 100
2µV/div
0.015
0.010
0.005
V
= 100mV
P-P
OUT
G = 1
R = 100kΩ
L
0
1
0.1
1
10
100
1k
10k
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
1s/div
FREQUENCY (Hz)
8
_______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Typical Operating Characteristics (continued)
(V
= 5V, V = 0V, V + = V = V
= V /2, R = 100kΩ to V /2, T = +25°C, unless otherwise noted. V
= V
- V
IN
-
=
DD
SS
IN
REF
DD
L
DD
A
DIFF
IN+
IN-
-100mV to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.)
MAX4462H
NORMALIZED OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
SUPPLY CURRENT
VS. SUPPLY VOLTAGE
SHUTDOWN CURRENT
VS. SUPPLY VOLTAGE
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
1000
950
900
850
800
750
700
650
600
550
500
450
400
350
300
14
12
10
8
V
V
V
= +2.5V, V = -2.5V
EE
DD
T
= +85°C
A
= 20mV
= 2V
DIFF
OUT
G = 100V/V
= 0V
V
REF
T
= +25°C
T
= +85°C
A
A
6
T
= -40°C
A
4
T
= +25°C
A
T
= -40°C
A
2
0
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
(V)
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
SUPPLY VOLTAGE (V)
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
SUPPLY VOLTAGE (V)
V
CM
MAX4462H
NORMALIZED OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
OUTPUT SWING HIGH
VS. OUTPUT CURRENT
OUTPUT SWING LOW
vs. OUTPUT CURRENT
0
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
-0.14
-0.16
-0.18
-0.20
-0.22
-0.24
-0.26
-0.28
-0.30
200
180
160
140
120
100
80
500
450
400
350
300
250
200
150
100
50
V
V
V
= +2.5V, V = -2.5V
EE
DD
= 20mV
= 2V
DIFF
OUT
V
= 3.3V
DD
G = 100V/V
= 0V
V
= 2.85V
DD
V
REF
V
= 3.3V
DD
V
= 2.85V
DD
60
V
= 5.0V
DD
8
V
= 5.0V
DD
40
20
0
0
-2.7 -2.4 -2.1 -1.8 -1.5 -1.2 -0.9 -0.6 -0.3
(V)
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
9
10
V
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
CM
GAIN vs. FREQUENCY
GAIN BANDWIDTH vs. TEMPERATURE
SETTLING TIME (GAIN = 100)
MAX4460 toc18
50
40
30
20
10
0
27
26
25
24
23
22
INPUT
10mV/div
A
= 100V/V
V
OUTPUT
500mV/div
A
= 10V/V
V
OUTPUT
10mV/div
A
= 1V/V
10k
V
A
= 100V/V
60
V
-10
10
100
1k
100k
1M
10M
-40
-15
10
35
85
40µs/div
FREQUENCY (Hz)
TEMPERATURE (°C)
_______________________________________________________________________________________
9
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Typical Operating Characteristics (continued)
(V
= 5V, V = 0V, V + = V = V
= V /2, R = 100kΩ to V /2, T = +25°C, unless otherwise noted. V
= V
- V
=
IN
-
DD
SS
IN
REF
DD
L
DD
A
DIFF
IN+
IN-
-100mV to +100mV for G = 1 and G = 10, -20mV to +20mV for G = 100.)
SMALL-SIGNAL PULSE RESPONSE
(GAIN = 1V/V)
LARGE-SIGNAL PULSE RESPONSE
(GAIN = 1V/V)
LARGE-SIGNAL PULSE RESPONSE
(GAIN = 100V/V)
MAX4460 toc21
MAX4460 toc19
MAX4460 toc20
INPUT
10mV/div
INPUT
INPUT
10mV/div
50mV/div
OUTPUT
1V/div
OUTPUT
OUTPUT
1µs/div
1µs/div
20µs/div
SMALL-SIGNAL PULSE RESPONSE
(GAIN = 100V/V)
SMALL-SIGNAL PULSE RESPONSE
(GAIN = 1V/V)
SMALL-SIGNAL PULSE RESPONSE
(GAIN = 100V/V)
MAX4460 toc23
C = 100pF
C = 100pF
L
L
INPUT
INPUT
1mV/div
1mV/div
INPUT
10mV/div
OUTPUT
100mV/div
OUTPUT
100mV/div
OUTPUT
20µs/div
1µs/div
20µs/div
10 ______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Pin Descriptions
PIN
NAMꢂ
FUNCTION
MAX4460
SOT23/TDFN
SO
1
1
2
OUT
GND
IN+
Output
2
Negative Supply Voltage
Positive Differential Input
3
3
—
4
4, 5
6
N.C.
IN-
No Connection. Not internally connected.
Negative Differential Input
5
7
V
Positive Supply Voltage
DD
Feedback Input. Connect FB to the center tap of a resistive divider from
OUT to GND to set the gain.
6
8
FB
EP
—
EP
Exposed Pad. TDFN only. Connect to GND.
PIN
NAMꢂ
FUNCTION
MAX4461
SOT23/TDFN
SO
1
1
2
OUT
GND
IN+
Output
2
Negative Supply Voltage
3
3
Positive Differential Input
—
4
4, 5
6
N.C.
IN-
No Connection. Not internally connected.
Negative Differential Input
5
7
V
Positive Supply Voltage
DD
6
8
SHDN
Shutdown Control. Drive SHDN high for normal operation.
Exposed Pad. TDFN only. Connect to GND.
EP
—
EP
PIN
MAX4462
SOT23/TDFN
NAMꢂ
FUNCTION
SO
1
1
2
OUT
Output
2
V
Negative Supply Voltage
Positive Differential Input
No Connection. Not internally connected.
Negative Differential Input
Positive Supply Voltage
SS
3
3
IN+
N.C.
IN-
—
4
4, 5
6
5
7
V
DD
Output Reference Level. Connect REF to an external, low-
impedance reference voltage. REF sets the OUT voltage for zero
differential inputs.
6
8
REF
EP
EP
—
Exposed Pad. TDFN only. Connect to V
.
SS
______________________________________________________________________________________ 11
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Functional Diagrams
V
V
DD
V
DD
DD
MAX4461
MAX4462
MAX4460
OUT
OUT
OUT
SHDN
FB
g
g
M
g
M
g
g
M
g
M
M
M
REF
V
SS
Figure 1. Functional Diagrams
Detailed Description
V
DD
The MAX4460/MAX4461/MAX4462 family of instrumen-
tation amplifiers implements Maxim’s proprietary indi-
rect current-feedback design to achieve a precision
specification and excellent gain-bandwidth product.
These new techniques allow ground-sensing capability
combined with an ultra-low input current and an
increased common-mode rejection.
MAX4460
OUT
FB
R2
R1
The differential input signal is converted to a current by
an input transconductance stage. An output transcon-
ductance stage converts a portion of the output voltage
(equal to the output voltage divided by the gain) into
another precision current. These two currents are sub-
tracted and the result is fed to a loop amplifier with a
class AB output stage with sufficient gain to minimize
errors (Figure 1).
g
M
g
M
The MAX4461U/T/H and MAX4462U/T/H have factory-
trimmed gains of 1, 10, and 100, respectively. The
MAX4460 has an adjustable gain, set with an external
pair of resistors between pins OUT, FB, and GND
(Figure 2).
Figure 2. MAX4460 External Resistor Configuration
The MAX4461U/T/H has a shutdown feature to reduce
the supply current to less than 1µA. The MAX4461U/
T/H output is internally referenced to ground, making
the part suitable for unipolar operations.
The MAX4462U/T/H has a reference input (REF) which
is connected to an external reference for bipolar opera-
tion of the device. The range for V
is 0.1V to (V
-
The MAX4460 has an FB pin that can be used to exter-
nally set the gain through a pair of resistors (see Setting
the Gain (MAX4460) section). The MAX4460 output is
internally referenced to ground, making the part suitable
for unipolar operations.
REF
DD
1.7V). For full output-swing capability, optimal perfor-
mance is usually obtained with V = V /2.
REF
DD
The MAX4460/MAX4461/MAX4462 operate with single-
supply voltages of 2.85V to 5.25V. It is possible to use the
MAX4462U/T/H in a dual-supply configuration with up to
2.6V at V and V , with REF connected to ground.
DD
SS
12 ______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
levels. In these cases, as the output approaches either
supply, accuracy may degrade, especially under heavy
output loading.
Input Common-Mode and Output
Reference Ranges
MAX4460/MAX4461/MAX4462 have an input common-
mode range of 100mV below the negative supply to
1.7V below the positive supply.
Shutdown Mode
The MAX4461U/T/H features a low-power shutdown
mode. When the SHDN pin is pulled low, the internal
transconductance and amplifier blocks are switched off
and supply current drops to typically less than 0.1µA
(Figure 1).
The output reference voltage of MAX4462U/T/H is set by
REF and ranges from 100mV above the negative supply
to 1.7V below the positive supply. For maximum voltage
swing in a bipolar operation, connect REF to VDD/2.
The output voltages of the MAX4460 and MAX4461U/
T/H are referenced to ground. Unlike the traditional
three-op-amp configuration of common instrumentation
amplifiers, the MAX4460/MAX4461/MAX4462 have
In shutdown, the amplifier output is high impedance.
The output transistors are turned off, but the feedback
resistor network remains connected. If the external load
is referenced to GND, the output drops to approximate-
ly GND in shutdown. The output impedance in shut-
down is typically greater than 100kΩ. Drive SHDN high
ground-sensing capability (or to V
in dual-supply
SS
configuration) in addition to the extremely high input
impedances of MOS input differential pairs.
or connect to V
for normal operation.
CC
Input Differential Signal Range
The MAX4460/MAX4461/MAX4462 feature a proprietary
input structure optimized for small differential signals.
The unipolar output of the MAX4460/MAX4461 is nomi-
nally zero-for-zero differential input. However, these
devices are specified for inputs of 50mV to 100mV for
the unity-gain devices, 20mV to 100mV for gain of 10
devices, and 2mV to 48mV for gain of 100 devices. The
MAX4460/MAX4461 can be used with differential inputs
approaching zero, albeit with reduced accuracy.
A User Guide to Instrumentation
Amplifier Accuracy Specifications
As with any other electronic component, a complete
understanding of instrumentation amplifier specifica-
tions is essential to successfully employ these devices
in their application circuits. Most of the specifications
for these differential closed-loop gain blocks are similar
to the well-known specifications of operational ampli-
fiers. However, there are a few accuracy specifications
that could be confusing to first-time users. Therefore,
some explanations and examples may be helpful.
The bipolar output of the MAX4462 allows bipolar input
ranges. The output voltage is equal to the reference
voltage for zero differential input. The MAX4462 is
specified for inputs of 100mV for the unity gain and
gain of 10 devices, and 20mV for gain of 100 devices.
The gain of 100 devices (MAX4462H) can be operated
beyond 20mV signal provided the reference is chosen
for unsymmetrical swing.
Accuracy specifications are measurements of close-
ness of an actual output response to its ideal
expected value. There are three main specifications
in this category:
●
●
●
Gain error
Gain nonlinearity error
Offset error
Output Swing
The MAX4460/MAX4461/MAX4462 are designed to
have rail-to-rail output voltage swings. However,
depending on the selected gain and supply voltage
(and output reference level of the MAX4462), the rail-to-
rail output swing is not required.
In order to understand these terms, we must look at the
transfer function of an ideal instrumentation amplifier. As
expected, this must be a straight line passing through
origin with a slope equal to the ideal gain (Figure 3). If
the ideal gain is equal to 10 and the extreme applied
input voltages are -100mV and +100mV, then the value
of the output voltages are -1V and +1V, respectively.
Note that the line passes through the origin and therefore
a zero input voltage gives a zero output response.
For example, consider the MAX4461U, a unity-gain
device with its ground pin as the output reference level.
The input voltage range is 0 to 100mV (50mV minimum
to meet accuracy specifications). Because the device
is unity gain and the output reference level is ground,
the output only sees excursions from ground to 100mV.
The transfer function of a real instrumentation amplifier
is quite different from the ideal line pictured in Figure 3.
Rather, it is a curve such as the one indicated as the
typical curve in Figure 4, connecting end points A and B.
Devices with higher gain and with bipolar output such
as the MAX4462, can be configured to swing to higher
______________________________________________________________________________________ 13
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
END-POINT LINE
V
OUT
IDEAL TRANSFER
FUNCTION (LINE)
B
V
OUT
V
OUT2
Z
E
IDEAL LINE
ACTUAL CURVE
V
IN1
V
IN
0
V
V
IN
IN2
0
V
OUT1
A
Figure 3. Transfer Function of an Ideal Instrumentation
Amplifier (Straight Line Passing Through the Origin)
Figure 4. Typical Transfer Function for a Real Instrumentation
Amplifier
Looking at this curve, one can immediately identify
three types of errors.
ACTUAL CURVE
B
V
First, there is an obvious nonlinearity (curvature) when
this transfer function is compared to a straight line.
More deviation is measured as greater nonlinearity
error. This is explained in more detail below.
OUT
END-POINT LINE
IDEAL LINE SHIFT
D
Z
E
Second, even if there was no nonlinearity error, i.e., the
actual curve in Figure 4 was a straight line connecting
end points A and B, there exists an obvious slope devi-
ation from that of an ideal gain slope (drawn as the
“ideal” line in Figure 4). This rotational error (delta
slope) is a measure of how different the actual gain
NL+
V
IN
0
(G ) is from the expected ideal gain (G and is called
A
I)
gain error (GE) (see the equation below).
Third, even if the actual curve between points A and B
was a straight line (no nonlinearity error) and had the
same slope as the ideal gain line (no gain error), there
is still another error called the end-point offset error (OE
on vertical axis), since the line is not passing through
the origin.
C
A
NL-
SLOPE
SLOPE
= IDEAL GAIN = G
= ACTUAL GAIN = G
(CD)
(AB)
I
Figure 5 is the same as Figure 4, but the ideal line (CD)
is shifted up to pass through point E (the Y intercept of
end-points line AB).
A
GAIN ERROR (%) = GE (%) = 100 X (G - G ) / G
I
OFFSET
(END POINT)
NL- = NL+
A
I
= OE
This is done to better visualize the rotational error (GE),
which is the difference between the slopes of end
points line AB and the shifted ideal line CD.
Figure 5. Typical Transfer Function for a Real Instrumentation
Amplifier (Ideal Line (CD) Is Shifted by the End-Points Offset
(OE) to Visualize Gain Error)
Mathematically:
GE (ꢀ) = 100 x (G - G ) / G
I
A
I
14 ______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
The rotational nature of gain error, and the fact that it is
ACTUAL CURVE
pivoted around point E in Figure 5, shows that gain-
error contribution to the total output voltage error is
directly proportional to the input voltage. At zero input
voltage, the error contribution of gain error is zero, i.e.,
the total deviation from the origin (the expected zero
output value) is only due to end-points OE and nonlin-
earity error at zero value of input (segment EZ on the
vertical axis).
B
V
OUT
END-POINT LINE
Z
BSL LINE
NL+
The nonlinearity is the maximum deviation from a
straight line, and the end-point nonlinearity is the devia-
tion from the end-point line. As shown in Figure 5, it is
likely that two nonlinearities are encountered, one posi-
tive and the other a negative nonlinearity error, shown
as NL+ and NL- in Figure 5.
S
E
0
V
IN
Generally, NL+ and NL- have different values and this
remains the case if the device is calibrated (trimmed)
for end-points errors (which means changing the gain
of the instrumentation amplifier in such a way that the
slope of line AB becomes equal to that of CD, and the
offset becomes trimmed such that OE vanishes to
zero). This is an undesirable situation when nonlinearity
is of prime interest.
NL-
A
NL+ = NL- = NL
NL (%) = (NL / FULL-SCALE OUTPUT RANGE) X 100
BSL
OFFSET (BSL) = OSL
The straight line shown in Figure 6 is in parallel to end-
points line AB and has a Y intercept of OS on the verti-
cal axis. This line is a shifted end-points line such that
the positive and negative nonlinearity errors with
respect to this line are equal. For this reason, the line is
called the best straight line (BSL). Maxim internally
trims the MAX4460/MAX4461/MAX4462 with respect to
this line (changing the gain slope to be as close as
possible to the slope of the ideal line and trimming the
offset such that OS gets as close to the origin as possi-
ble) to minimize all the errors. The total accuracy error
is still the summation of the gain error, nonlinearity, and
offset errors.
GAIN AND OFFSET WILL BE FACTORY-TRIMMED FOR BEST STRAIGHT LINE
Figure 6. To Minimize Nonlinearity Error, the MAX4460/MAX4461/
MAX4462 are Internally Trimmed to Adjust Gain and Offset for the
Best Straight Line so NL- = NL+
The individual errors are as follows:
GE = (0.15ꢀ) (10) (100mV) = 1.5mV
Offset (BSL) = (250µV) (10) = 2.5mV
NL = (0.05ꢀ) (2V) = 1mV
Maximum Total Error = 1.5mV + 2.5mV + 1mV
= 5mV
As an example, assume the following specification for
an instrumentation amplifier:
So, the absolute value of the output voltage, consider-
ing the above errors, would be at worst case between
0.995V to 1.005V. Note that other important parameters
such as PSRR, CMRR, and noise also contribute to the
total error in instrumentation applications. They are not
considered here.
Gain = 10
GE = 0.15ꢀ
Offset (BSL) = 250µV
NL = 0.05ꢀ
V
(input) = -100mV to +100mV
DIF
What is the maximum total error associated with the
GE, offset (BSL), and NL? With a differential input range
of -0.1V to +0.1V and a gain of 10, the output voltage
assumes a range of -1V to +1V, i.e., a total full-scale
range of 2V.
______________________________________________________________________________________ 15
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Power-Supply Bypass and Layout
Applications Information
Good layout technique optimizes performance by
decreasing the amount of stray capacitance at the
instrumentation amplifier’s gain-setting pins. Excess
capacitance produces peaking in the amplifier’s fre-
quency response. To decrease stray capacitance, min-
imize trace lengths by placing external components as
close to the instrumentation amplifier as possible. For
best performance, bypass each power supply to
ground with a separate 0.1µF capacitor.
Setting the Gain (MAX4460)
The MAX4460 gain is set by connecting a resistive-
divider from OUT to GND, with the center tap connect-
ed to FB (Figure 2). The gain is calculated by:
Gain = 1 + R2 / R1
Because FB has less than 100pA IB, high-valued resis-
tors can be used without significantly affecting the gain
accuracy. The sum of resistors (R1 + R2) near 100kΩ is
a good compromise. Resistor accuracy directly affects
gain accuracy. Resistor sum less than 20kΩ should not
be used because their loading can slightly affect output
accuracy.
Microphone Amplifier
The MAX4462’s bipolar output, along with its excellent
common-mode rejection ratio, makes it suitable for pre-
cision microphone amplifier applications. Figure 7 illus-
trates one such circuit. In this case, the electret
microphone is resistively biased to the supply voltage
through a 2.2kΩ pullup resistor. The MAX4462 directly
senses the output voltage at its noninverting input, and
indirectly senses the microphone’s ground through an
AC-coupling capacitor. This technique provides excel-
lent rejection of common-mode noise picked up by the
microphone lead wires. Furthermore, ground noise from
distantly located microphones is reduced.
Capacitive-Load Stability
The MAX4460/MAX4461/MAX4462 are capable of dri-
ving capacitive loads up to 100pF.
Applications needing higher capacitive drive capability
may use an isolation resistor between OUT and the
load to reduce ringing on the output signal. However
this reduces the gain accuracy due to the voltage drop
across the isolation resistor.
The single-ended output of the MAX4462 is converted to
differential through a single op amp, the MAX4335. The
op amp forces the midpoint between OUT+ and OUT- to
be equal to the reference voltage. The configuration
does not change the MAX4662T’s fixed gain of 10.
Output Loading
For best performance, the output loading should be to
the potential seen at REF for the MAX4462 or to ground
for the MAX4460/MAX4461.
REF Input (MAX4462)
The REF input of the MAX4462 can be connected to any
voltage from (V + 0.1V) to (V
- 1.7V). A buffered
DD
SS
voltage-divider with sink and source capability works
well to center the output swing at VDD/2. Unbuffered
resistive dividers should be avoided because the 100kΩ
(typ) input impedance of REF causes amplitude-depen-
dent variations in the divider’s output.
Bandgap references, either series or shunt, can be
used to drive REF. This provides a voltage and temper-
ature invariant reference. This same reference voltage
can be used to bias bridge sensors to eliminate supply
voltage ratiometricity. For proper operation, the refer-
ence must be able to sink and source at least 25µA.
In many applications, the MAX4462 is connected to a
CODEC or other device with a reference voltage out-
put. In this case, the receiving device’s reference out-
put makes an ideal reference voltage. Verify the
reference output of the device is capable of driving the
MAX4462’s REF input.
16 ______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
V
DD
3.3kΩ
MAX4462TEUT
4.7µF
2.2kΩ
5
2
3
1
OUT+
100kΩ
4
20kΩ
6
20kΩ
6
3
1
MIC
4
MAX4335
V
REF
2
0.1µF
OUT-
Figure 7. Differential I/O Microphone Amplifier
Ordering Information (continued)
Typical Application Circuits
(continued)
TꢂMP
PIN-
TOP
PART
RANꢁꢂ
PACKAꢁꢂ
MARK
V
CC
MAX4462UETT+T -40°C to +85°C
6 TDFN-EP* +ANM
MAX4462UEUT-T
MAX4462UESA
MAX4462TETT+T
MAX4462TEUT-T
MAX4462TESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
6 SOT23-6
8 SO
AASW
—
MAX4461
1
V
+ ∆V
CM
3
4
5
∆V
6 TDFN-EP* +ANN
∆V > 0
6 SOT23-6
8 SO
AASX
—
OUT
6
V
CM
SHDN
2
MAX4462HETT+T -40°C to +85°C
6 TDFN-EP* +ANO
MAX4462HEUT-T
MAX4462HESA
-40°C to +85°C
-40°C to +85°C
6 SOT23-6
8 SO
AASY
—
+Denotes lead-free package.
*EP = Exposed paddle.
Selector Guide
PART
ꢁAIN
RꢂF
GND
GND
GND
GND
EXT
SHUTDOWN
Chip Information
MAX4460
Adjustable
NO
YES
YES
YES
NO
TRANSISTOR COUNT: 421
PROCESS: BiCMOS
MAX4461U
MAX4461T
MAX4461H
MAX4462U
MAX4462T
MAX4462H
1
10
100
1
10
100
EXT
NO
EXT
NO
______________________________________________________________________________________ 17
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Pin Configurations
TOP VIEW
OUT
GND
IN+
1
2
3
4
8
7
6
5
FB
OUT
GND
IN+
1
2
3
6
5
4
FB
+
1
6
V
OUT
GND
IN+
FB
DD
MAX4460
MAX4460
V
DD
IN-
2
3
5
4
VDD
IN-
MAX4460
N.C.
N.C.
IN-
*EP
*EP
*EP
SO
SOT23
TDFN
OUT
GND
IN+
1
2
3
4
8
7
6
5
OUT
GND
IN+
1
6
SHDN
SHDN
+
1
6
V
OUT
GND
IN+
SHDN
DD
MAX4461
MAX4461
2
3
5
4
V
DD
IN-
2
3
5
4
VDD
IN-
MAX4461
N.C.
N.C.
IN-
SO
SOT23
TDFN
OUT
1
2
3
4
8
7
6
5
REF
OUT
1
6
REF
+
V
SS
V
DD
1
6
OUT
REF
MAX4462
MAX4462
V
2
3
5
4
V
DD
SS
IN+
IN-
V
2
3
5
4
VDD
IN-
SS
MAX4462
N.C.
N.C.
IN+
IN-
IN+
SO
SOT23
TDFN
+ DENOTES LEAD-FREE PACKAGING
18 ______________________________________________________________________________________
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
D2
D
A2
PIN 1 ID
N
0.35x0.35
b
[(N/2)-1] x e
REF.
PIN 1
INDEX
AREA
E
E2
DETAIL A
e
A1
k
C
C
L
L
A
L
L
e
e
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
1
-DRAWING NOT TO SCALE-
21-0137
G
2
COMMON DIMENSIONS
SYMBOL
MIN.
0.70
2.90
2.90
0.00
0.20
MAX.
0.80
3.10
3.10
0.05
0.40
A
D
E
A1
L
k
0.25 MIN.
0.20 REF.
A2
PACKAGE VARIATIONS
DOWNBONDS
ALLOWED
PKG. CODE
T633-1
N
6
D2
E2
e
JEDEC SPEC
b
[(N/2)-1] x e
1.90 REF
1.90 REF
1.95 REF
1.95 REF
1.95 REF
2.00 REF
2.40 REF
2.40 REF
1.50±0.10 2.30±0.10 0.95 BSC
1.50±0.10 2.30±0.10 0.95 BSC
1.50±0.10 2.30±0.10 0.65 BSC
1.50±0.10 2.30±0.10 0.65 BSC
1.50±0.10 2.30±0.10 0.65 BSC
MO229 / WEEA
MO229 / WEEA
MO229 / WEEC
MO229 / WEEC
MO229 / WEEC
0.40±0.05
0.40±0.05
0.30±0.05
0.30±0.05
0.30±0.05
NO
NO
T633-2
6
T833-1
8
NO
T833-2
8
NO
T833-3
8
YES
NO
T1033-1
T1433-1
T1433-2
10
14
14
1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05
1.70±0.10 2.30±0.10 0.40 BSC
1.70±0.10 2.30±0.10 0.40 BSC
- - - -
- - - -
0.20±0.05
0.20±0.05
YES
NO
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
2
-DRAWING NOT TO SCALE-
21-0137
G
2
Note: MAX446_ _ETT+T uses TDFN package option T633-2.
______________________________________________________________________________________ 19
SOT23, 3V/5V, Single-Supply, Rail-to-Rail
Instrumentation Amplifiers
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, SOT 6L BODY
1
21-0058
G
1
INCHES
MILLIMETERS
DIM
A
MIN
MAX
0.069
0.010
0.019
0.010
MIN
1.35
0.10
0.35
0.19
MAX
1.75
0.25
0.49
0.25
0.053
0.004
0.014
0.007
N
A1
B
C
e
0.050 BSC
1.27 BSC
E
0.150
0.228
0.016
0.157
0.244
0.050
3.80
5.80
0.40
4.00
6.20
1.27
E
H
H
L
VARIATIONS:
INCHES
1
MILLIMETERS
DIM
D
MIN
MAX
0.197
0.344
0.394
MIN
4.80
8.55
9.80
MAX
5.00
N
8
MS012
AA
TOP VIEW
0.189
0.337
0.386
D
8.75 14
10.00 16
AB
D
AC
D
C
A
B
0∞-8∞
e
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0041
B
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2006 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products, Inc.
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