MAX4487AUD+T [MAXIM]
Operational Amplifier, 4 Func, 11000uV Offset-Max, BICMOS, PDSO14, 4.40 MM, TSSOP-14;
| 型号： | MAX4487AUD+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Operational Amplifier, 4 Func, 11000uV Offset-Max, BICMOS, PDSO14, 4.40 MM, TSSOP-14 运算放大器 |
| 文件： | 总12页 (文件大小：368K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1823, Rev 0; 10/00
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
General Description
____________________________Features
ꢀ 7MHz Unity-Gain Stable Bandwidth
ꢀ Stable for Capacitive Loads up to 100pF
ꢀ +2.7V to +5.5V Single-Supply Voltage Range
ꢀ Ground-Sensing Inputs
The MAX4484/MAX4486/MAX4487 single/dual/quad
low-cost general-purpose op amps operate from a sin-
gle +2.7V to +5.5V supply. The op amps are unity-gain
stable with a 7MHz gain-bandwidth product, capable of
driving an external 2kΩ load with Rail-to-Rail® output
swing. The amplifiers are stable with capacitive loads of
up to 100pF. The MAX4484/MAX4486/MAX4487 are
specified from -40°C to +125°C, making them suitable
for a variety of harsh environments, such as automotive.
ꢀ Outputs Swing Rail-to-Rail
ꢀ No Phase Reversal for Overdriven Inputs
The single MAX4484 is available in the ultra-small 5-pin
SC70, while the dual MAX4486 is packaged in the
space-saving 8-pin SOT23 and µMAX packages. The
quad MAX4487 is available in the 14-pin SO and
TSSOP packages.
ꢀ 85dB A
with 2kΩ Load
VOL
ꢀ 0.01% THD with 2kΩ Load
ꢀ Available in Space-Saving Packages
5-Pin SC70 (MAX4484)
8-Pin SOT23 (MAX4486)
________________________Applications
Single-Supply Zero-Crossing Detector
Ordering Information
Instruments and Terminals
TEMP.
PIN-
TOP
PART
Portable Communicators
RANGE
PACKAGE
MARK
Electronic Ignition Modules
MAX4484AXK-T -40°C to +125°C
MAX4484AUK-T -40°C to +125°C
MAX4486AKA-T -40°C to +125°C
5 SC70-5
5 SOT23-5
8 SOT23-8
8 SO
ABQ
ADPE
AAEP
—
Infrared Receivers for Remote Controls
Sensor Signal Detection
MAX4486ASA
MAX4486AUA
MAX4487AUD
MAX4487ASD
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
8 µMAX
14 TSSOP
14 SO
—
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
—
—
Pin Configurations/Functional Diagrams
MAX4487
MAX4486
MAX4484
IN+
V
OUTA
INA-
1
2
3
5
4
1
2
3
4
5
6
7
OUTD
IND-
14
13
12
OUTA
INA-
V
DD
DD
1
2
3
4
8
7
V
OUTB
INB-
SS
OUT
INA+
IND+
IN-
INA+
6
5
SC70-5/SOT23-5
11 V
SS
INB+
V
V
DD
SS
SOT23-8/SO-8/µMAX
INB+
INB-
10 INC+
9
8
INC-
OUTC
OUTB
SO-14/TSSOP-14
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
ABSOLUTE MAXIMUM RATINGS
Power Supply Voltage (V
to V ) .........................-0.3V to +6V
8-Pin µMAX (derate 4.5mW//°C above +70°C)............362mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
Operating Temperature Range .........................-55°C to +125°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 (OUT shorted
to V or V )...........................................................Continuous
DD
SS
Continuous Power Dissipation (T = +70°C)
A
5-Pin SC70 (derate 3.1mW/°C above +70°C)..............247mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C) ...........571mW
8-Pin SOT23 (derate 9.1mW/°C above +70°C)............727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
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.
ELECTRICAL CHARACTERISTICS—T = +25°C
A
(V
= +5.0V, V = 0, V
SS
= 0, V
= V /2, R = ∞ to V /2, unless otherwise noted.)
OU L DD
T DD
DD
CM
PARAMETER
SYMBOL
CONDITIONS
Inferred from PSRR test
MIN
TYP
MAX UNITS
Supply Voltage Range
V
2.7
5.5
V
DD
V
V
= +2.7V
= +5.0V
1.9
2.2
DD
DD
Supply Current per Amplifier
I
mA
DD
3.5
5.0
7.0
9.0
100
100
MAX4484
0.3
Input Offset Voltage
V
MAX4486
0.3
mV
OS
MAX4487
0.3
Input Bias Current
Input Offset Current
Input Resistance
I
(Note 1)
0.1
pA
pA
B
I
(Note 1)
0.1
OS
R
Differential or common mode
1000
GΩ
IN
Input Common-Mode Voltage
Range
V
V
1.3
-
DD
SS
V
Inferred from CMRR test
V
CM
Common-Mode Rejection Ratio
CMRR
PSRR
V
≤ V
≤ V - 1.3V
67
70
83
85
dB
dB
SS
CM
DD
Power-Supply Rejection
Ratio
+2.7V ≤ V
≤ +5.5V
DD
V
0.3V
+ 0.3V ≤ V
≤ V
-
DD
R = 100kΩ
98
85
3
SS
OUT
L
Large-Signal Voltage Gain
Output Voltage High
A
dB
mV
mV
mA
VOL
R = 2kΩ
L
76
R = 100kΩ
L
V
Specified as |V
- V
OH
|
OH
DD
R = 2kΩ
L
15
1
50
50
R = 100kΩ
L
Output Voltage Low
V
Specified as |V - V
|
SS
OL
OL
R = 2kΩ
L
20
27
33
7
Sourcing
Sinking
Output Short-Circuit Current
I
SC
Gain-Bandwidth Product
Phase Margin
GBW
φm
MHz
degrees
dB
55
12
20
29
1
Gain Margin
Gm
SR
Slew Rate
V/µs
nV/√Hz
Input Voltage Noise Density
Input Current Noise Density
e
f = 10kHz
f = 10kHz
n
i
n
fA/√Hz
2
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
ELECTRICAL CHARACTERISTICS—T = +25°C (continued)
A
(V
= +5.0V, V = 0, V
= 0, V
= V /2, R = ∞ to V /2, unless otherwise noted.)
OUT DD L DD
DD
SS
CM
PARAMETER
SYMBOL
CONDITIONS
A = +1V/V (Note 1)
MIN
TYP
MAX UNITS
Capacitive-Load Stability
Power-On Time
C
100
pF
µs
pF
LOAD
V
t
1
2
ON
Input Capacitance
C
IN
R = 100kΩ
0.006
0.01
450
L
f = 10kHz, V
A = +1V/V
V
= 2Vp-p,
OUT
Total Harmonic Distortion
Settling Time to 0.01%
THD
%
R = 2kΩ
L
t
V
= 4V step, A = +1V/V
ns
S
OUT
V
ELECTRICAL CHARACTERISTICS—T = -40°C to +125°C
A
(V
= +5.0V, V = 0, V
SS
= 0, V
= V /2, R = ∞ to V /2, unless otherwise noted.) (Note 2)
OUT DD L DD
DD
CM
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
Supply Voltage Range
V
Inferred from PSRR test
2.7
5.5
V
DD
DD
Supply Current per Amplifier
I
4.0
mA
MAX4484
MAX4486
MAX4487
8.5
Input Offset Voltage
V
mV
10.0
11.0
OS
Input Offset Voltage Drift
Input Bias Current
TC
6
µV/°C
pA
VOS
I
(Note 1)
(Note 1)
100
100
B
Input Offset Current
I
pA
OS
Input Common-Mode Voltage
Range
V
Inferred from CMRR test
V
V - 1.4
DD
V
CM
SS
T = -40°C to +85°C
65
62
67
64
66
62
V
1.4V
≤ V
≤ V -
DD
A
SS
CM
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage High
CMRR
PSRR
dB
dB
dB
mV
mV
T = -40°C to +125°C
A
T = -40°C to +85°C
A
+2.7V ≤ V
≤ +5.5V
DD
T = -40°C to +125°C
A
T = -40°C to +85°C
A
V
V
+ 0.3V ≤ V
- 0.3V, R = 2kΩ
≤
OUT
SS
A
VOL
DD
L
T = -40°C to +125°C
A
T = -40°C to +85°C
A
100
100
100
250
|V
R
- V
|,
DD
OUT
V
OH
= 2kΩ
L
T = -40°C to +125°C
A
T = -40°C to +85°C
A
|V
R
- V
|
OUT
SS
Output Voltage Low
V
OL
= 2kΩ
L
T = -40°C to +125°C
A
Note 1: Guaranteed by design.
Note 2: Specifications are 100% tested at T = +25°C (exceptions marked). All temperature limits are guaranteed by design.
A
_______________________________________________________________________________________
3
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Typical Operating Characteristics
(V
= +5V, V = 0, V
= V /2, R = ∞ to V /2, unless otherwise noted.)
DD
SS
CM
DD
L
DD
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
GAIN AND PHASE vs.
GAIN AND PHASE vs.
FREQUENCY WITH CAPACITIVE LOAD
FREQUENCY (C = 0)
L
0
80
40
80
40
-10
GAIN
GAIN
-20
-30
-40
0
-40
-80
0
-40
PHASE
PHASE
-80
-50
-60
-70
-120
-120
-160
-200
-160
-200
C = 100pF
VCL
L
A
= +1000
A
= +1000
VCL
-80
1
10 100 1k
10k 100k 1M 10M
100
1k
10k
100k
1M
10M 100M
100
1k
10k
100k
1M
10M 100M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
OUTPUT IMPEDANCE vs. FREQUENCY
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3.0
2.5
2.0
1.5
1.0
0.5
0
10k
1k
100
10
1
0.1
0.01
-40 -20
0
20 40 60 80 100 120
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
100
1k
10k
100k
1M
10M
TEMPERATURE (°C)
FREQUENCY (Hz)
NONINVERTING SMALL-
SIGNAL TRANSIENT RESPONSE
OUTPUT VOLTAGE HIGH
vs. TEMPERATURE
OUTPUT VOLTAGE LOW
vs. TEMPERATURE
MAX4484 toc09
40
35
30
25
20
15
10
12
10
8
R = 2k
L
IN
50mV/div
R = 2k
L
6
4
OUT
2
0
-40 -20
0
20 40 60 80 100 120
-40 -20
0
20 40 60 80 100 120
TEMPERATURE (°C)
1µs/div
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Typical Operating Characteristics (continued)
(V
= +5V, V = 0, V
= V /2, R = ∞ to V /2, unless otherwise noted.)
CM DD L DD
DD
SS
NONINVERTING LARGE-SIGNAL
TRANSIENT RESPONSE
PERCENT OVERSHOOT
vs. CAPACITIVE LOAD
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE LOW
MAX4484 toc10
110
100
90
35
30
25
20
15
10
R
= 100k
L
IN
NEGATIVE
80
2V/div
70
R
= 2k
150
L
60
POSITIVE
OUT
50
40
0
20
40
60
(pF)
80
100
120
0
1.0
0
50
100
|V
200
250
300
400ns/div
C
- V | (mV)
SS
LOAD
OUT
LARGE-SIGNAL GAIN
POWER-SUPPLY REJECTION RATIO
vs. OPERATING VOLTAGE
CROSSTALK vs. FREQUENCY
vs. OUTPUT VOLTAGE HIGH
0
90
85
110
100
90
R = 100k
L
-10
-20
-30
-40
-50
-60
-70
-80
-90
T
= +25°C
A
80
75
70
80
T
= -40°C
65
60
55
A
R = 2k
L
70
60
T
= +125°C
A
50
50
45
40
40
0
50
100
DD
150
OUT
200
250
300
100
1k
10k 100k
1M
10M 100M
1.5
2.0
2.5
3.0
|V - V | (mV)
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. AMPLITUDE
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. AMPLITUDE
1
0.14
0.12
0.14
0.12
f = 10kHz
= +1
= 2k
f = 10kHz
VCL
R = 100k
R
= 100k
L
A
R
A
= +1
VCL
L
L
0.10
0.10
0.1
0.08
0.06
0.08
0.06
A
= +1
VCL
0.01
0.04
0.04
0.02
0
0.02
0
0.001
1.0
1.0
0.01
0.1
1
10
100
1000
0
0.5
1.5
2.0 2.5 3.0 3.5
(Vp-p)
0.5
1.5
2.0 2.5 3.0 3.5
FREQUENCY (kHz)
V
V (Vp-p)
IN
IN
_______________________________________________________________________________________
5
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Pin Description
PIN
NAME
FUNCTION
MAX4484
MAX4486
MAX4487
3
—
—
—
2
—
—
—
2
IN-
IN+
Inverting Amplifier Input
Noninverting Amplifier Input
Amplifier Output
1
4
OUT
INA-
—
—
—
—
—
—
—
—
—
Inverting Amplifier Input (Channel A)
Noninverting Amplifier Input (Channel A)
Amplifier Output (Channel A)
3
3
INA+
OUTA
INB-
1
1
6
6
Inverting Amplifier Input (Channel B)
Noninverting Amplifier Input (Channel B)
Amplifier Output (Channel B)
5
5
INB+
OUTB
INC-
INC+
OUTC
7
7
—
—
—
9
Inverting Amplifier Input (Channel C)
Noninverting Amplifier Input (Channel C)
Amplifier Output (Channel C)
10
8
—
—
—
—
13
12
IND-
Inverting Amplifier Input (Channel D)
IND+
Noninverting Amplifier Input (Channel D)
—
2
—
4
14
11
4
OUTD
Amplifier Output (Channel D)
Negative Power-Supply Voltage
Positive Power-Supply Voltage
V
SS
5
8
V
DD
Detailed Description
Applications Information
Rail-to-Rail Output Stage
Power Supplies and Layout
The MAX4484/MAX4486/MAX4487 operates from a sin-
gle +2.7V to +5.5V power supply. Bypass the power
supply with 0.1µF capacitor to ground.
The MAX4484/MAX4486/MAX4487 can drive a 2kΩ
load and still swing within 50mV of the supply rails.
Figure 1 shows the output swing of the MAX4484 con-
figured with A = +1V/V.
V
Good layout techniques optimize performance by
decreasing the amount of stray capacitance at the op
amp’s inputs and outputs. To decrease stray capaci-
tance, minimize trace lengths by placing external com-
ponents close to the op amp’s pins. Use surface-mount
components for best results.
Driving Capacitive Loads
Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4484/MAX4486/MAX4487 are unity-gain stable
for a range of capacitive loads up to 100pF. Figure 2
shows the response of the MAX4484 with an excessive
capacitive load. Adding a series resistor between the
output and the load capacitor (Figure 3) improves the
circuit’s response by isolating the load capacitance
from the op amp’s output.
6
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
R
ISO
1V/div
C
L
MAX4484
MAX4486
MAX4487
400µs/div
Figure 1. Rail-to-Rail Output Operation
Figure 3. Capacitive-Load-Driving Circuit
IN
Chip Information
TRANSISTOR COUNT: MAX4484: 101
50mV/div
OUT
MAX4486: 202
MAX4487: 404
1µs/div
Figure 2. Small-Signal Transient Response with Excessive
Capacitive Load (C = 270pF)
L
_______________________________________________________________________________________
7
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Package Information
8
_______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Package Information (continued)
_______________________________________________________________________________________
9
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Package Information (continued)
10 ______________________________________________________________________________________
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Package Information (continued)
______________________________________________________________________________________ 11
Single/Dual/Quad, Low-Cost, Single-Supply
7MHz, Rail-to-Rail Op Amps
Package Information (continued)
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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