AD8638ARZ [ADI]
16V Auto-Zero, Rail-to-Rail Output, Precision Amplifiers; 16V自动调零，轨到轨输出，精密放大器
| 型号： | AD8638ARZ |
| 厂家： | 
ADI |
| 描述： | 16V Auto-Zero, Rail-to-Rail Output, Precision Amplifiers |
| 文件： | 总4页 (文件大小：91K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
16V Auto-Zero, Rail-to-Rail Output,
Precision Amplifiers
Preliminary Technical Data
AD8638
FEATURES
Low Offset Voltage: 10 μV max.
Offset Drift: 0.08 μV/°C
PIN CONFIGURATIONS
Rail-to-Rail Output
16V Single or 8V Dual Supply Operation
High Gain and CMRR: 140dB
High PSRR: 140 dB
5- Lead SOT-23
8- Lead SOIC
(RJ-5 Suffix)
(R-8 Suffix)
Very Low Input Bias Current: 100 pA
Low Supply Current: 1.4 mA/amp
OUT
V-
V+
-IN
NC
-IN
+IN
V-
NC
V+
1
5
1
8
AD8638
APPLICATIONS
AD8638
OUT
NC
Pressure and Position Sensors
Strain Gage Amplifiers
Medical Instrumentation
Thermocouple Amplifiers
Automotive Sensors
+IN
3
4
4
5
NC = NO CONNECT
NC = NO CONNECT
Precision References
Precision Current Sources
GENERAL DESCRIPTION
The AD8638 is a wide bandwidth auto-zero amplifiers
featuring rail-to-rail output swing while operating from 5 V to
16 V single supply or +/−2.5 V to ±8V dual supplies.
Using Analog Devices’ new topology these zero-drift
amplifiers combine low cost, with high accuracy and low
noise. No external capacitors are required. In addition, the
AD8638 family greatly reduces the digital switching noise
often found in chopper-stabilized amplifiers.
With an offset voltage of 10 µV, offset drift less than 0.08
µV/°C and noise of only 1.5 µVp-p (0 Hz to 10 Hz), the
AD8638 family is perfectly suited for applications where error
sources must be minimized. Position and pressure sensors,
thermocouple and thermopile detectors, and strain gage
amplifiers benefit greatly from nearly zero drift over their
operating temperature range.
The AD8638 family is specified for the extended industrial
(-40° to +125°C) temperature range. The AD8638 is available
in SOT-23 and SOIC.
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2007 Analog Devices, Inc. All rights reserved.
AD8638
Preliminary Data Sheet
ELECTRICALCHARACTERISTICS (@ VS =16V, VCM = Vs/2, TA =+25°C unless otherwise specified.)
Parameter
Symbol
Conditions
A Grade
Units
Min
Typ
Max
INPUT CHARACTERISTICS
Offset Voltage
VOS
25°C
-40°< T < +125°C
A
3
10
20
µV
µV
Input Bias Current
Input Offset Current
IB
25°C
-40°< T < +125°C
20
40
100
250
pA
pA
A
IOS
80
150
pA
pA
-40°< T < +125°C
A
Input Voltage Range
-40°< T < +125°C
A
0
VS - 2
V
Common-Mode Rejection Ratio
CMRR
AVO
VCM = -5V to +5V
120
120
130
115
140
130
dB
-40°< T < +125°C
A
dB
Large Signal Voltage Gain (Note 1)
Offset Voltage Drift
RL = 10 kΩ,VO= -5 to +5V
130
dB
-40°< T < +125°C
130
dB
A
ΔVOS/ΔT -40°< T < +125°C
0.004
0.08
µV/°C
A
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
RL = 2 kΩ
-40°C to +125°C
RL = 10KΩ
-40°C to +125°C
RL = 2 kΩ
-40°C to +125°C
RL = 10KΩ
15.8
15.9
V
15.7
15.95
15.95
100
V
V
V
Output Voltage Low
VOL
mV
mV
mV
170
30
50
-40°C to +125°C
70
±45
mV
mA
Short Circuit Limit
Output Current
ISC
-40°C to +125°C
-40°C to +125°C
VS = 5V to 16V
40
±30
mA
mA
IOUT
mA
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
ISY
110
140
1.0
dB
-40°C to +125°C
VO = 0V
dB
mA
Supply Current/Amplifier
1.2
1.4
-40°< TA < +125°C
mA
DYNAMIC PERFORMANCE
Slew Rate
SR
RL =10 kΩ
2
V/μs
Overlay Recovery Time
Gain Bandwidth Product
50
1.5
μs
MHz
GBP
NOISE PERFORMANCE
Voltage Noise
en p-p
en
f=0.1 to 10 Hz
f=1kHz
1.5
59
µV p-p
Voltage Noise Density
Current Noise Density
nV/√Hz
in
A/√Hz
f
f=10Hz
tbd
Note 1: Gain testing is highly dependent upon test bandwidth
Rev. PrA | Page 2 of 4
AD8638
Preliminary Data Sheet
ELECTRICALCHARACTERISTICS (@ VS =5V, VCM = Vs/2, TA =+25°C unless otherwise specified.)
Parameter
Symbol
Conditions
A Grade
Units
Min
Typ
Max
INPUT CHARACTERISTICS
Offset Voltage
VOS
3
10
20
µV
µV
-40°< T < +125°C
A
Input Bias Current
Input Offset Current
IB
15
30
40
120
pA
pA
-40°< T < +125°C
A
IOS
40
60
pA
pA
-40°< T < +125°C
A
Input Voltage Range
-40°< T < +125°C
A
0
VS - 2
V
Common-Mode Rejection Ratio
CMRR
AVO
VCM = -5V to +5V
120
120
130
120
135
130
dB
-40°< T < +125°C
A
dB
Large Signal Voltage Gain (Note 1)
Offset Voltage Drift
RL = 10 kΩ,VO= -5 to +5V
140
dB
-40°< T < +125°C
140
dB
A
ΔVOS/ΔT -40°< T < +125°C
0.004
0.08
µV/°C
A
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
RL = 2 kΩ
-40°C to +125°C
RL = 10 kΩ
-40°C to +125°C
RL = 2 kΩ
-40°C to +125°C
RL = 10 kΩ
4.9
4.95
4.9
4.99
4.99
25
V
V
4.95
V
V
Output Voltage Low
VOL
mV
mV
mV
40
7
14
-40°C to +125°C
15
±20
mV
mA
Short Circuit Limit
Output Current
ISC
-40°C to +125°C
-40°C to +125°C
VS = 5V to 16V
15
±tbd
mA
mA
IOUT
mA
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
ISY
110
140
0.9
dB
-40°C to +125°C
VO = 0V
dB
mA
Supply Current/Amplifier
1
-40°< TA < +125°C
1.2
mA
DYNAMIC PERFORMANCE
Slew Rate
SR
RL =10 kΩ
2
V/μs
Overlay Recovery Time
Gain Bandwidth Product
50
1.3
μs
MHz
GBP
NOISE PERFORMANCE
Voltage Noise
en p-p
en
f=0.1 to 10 Hz
f=1kHz
1.5
59
µV p-p
Voltage Noise Density
Current Noise Density
nV/√Hz
in
A/√Hz
f
f=10Hz
tbd
Note 1: Gain testing is highly dependent upon test bandwidth
Rev. PrA | Page 3 of 4
AD8638
Preliminary Data Sheet
ABSOLUTE MAXIMUM RATINGS1
Package Type
θ
JA
θ
JC
2
Units
Supply voltage.........................................................................+16V
Input Voltage............................................................................. ±Vs
Differential Input Voltage1 ........................................................ ±Vs
Output Short-Circuit Duration to Gnd.............................. Indefinite
Storage Temperature Range
5-Lead SOT-23 (RT-5)
8-Pin SOIC (R)
230
158
146
43
°C/W
°C/W
R, RM, RU Packages.....................................-65°C to +150°C
Operating Temperature Range
AD8638 .......................................................-40°C to +125°C
Junction Temperature Range
R, RT Packages..............................................-65°C to +150°C
Lead Temperature Range (Soldering, 60 Sec)..................... +300°C
NOTES
1
Differential input voltage is limited to ±5V or the supply voltage whichever is less.
2
θ
is specified for the worst case conditions, i.e., θ is specified for device soldered
JA
JA
in circuit board for surface mount packages.
ORDERING GUIDE
Model
AD8638ARJZ
AD8638ARZ
Temperature Range
-40°C to +125°C
-40°C to +125°C
Package Description
5-Lead SOT-23
8-Lead SOIC_N
Package Option
RJ-5
R-8
©2007 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
PR06895-0-6/07(PrA)
Rev. PrA | Page 4 of 4
相关型号：
AD8639ARMZ-REEL
DUAL OP-AMP, 23 uV OFFSET-MAX, 1.35 MHz BAND WIDTH, PDSO8, ROHS COMPLIANT, MO-187AA, MSOP-8
ROCHESTER
©2020 ICPDF网 联系我们和版权申明