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AD8551_12

更新时间： 2024-11-20 12:27:59
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亚德诺 - ADI 运算放大器
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24页 440K
描述
Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers

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AD8551_12 数据手册

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Zero-Drift, Single-Supply, Rail-to-Rail  
Input/Output Operational Amplifiers  
Data Sheet  
AD8551/AD8552/AD8554  
FEATURES  
PIN CONFIGURATIONS  
Low offset voltage: 1 μV  
1
8
NC  
–IN A  
+IN A  
V–  
NC  
V+  
OUT A  
NC  
Input offset drift: 0.005 μV/°C  
Rail-to-rail input and output swing  
5 V/2.7 V single-supply operation  
High gain, CMRR, PSRR: 130 dB  
Ultralow input bias current: 20 pA  
Low supply current: 700 μA/op amp  
Overload recovery time: 50 μs  
No external capacitors required  
AD8551  
4
5
NC = NO CONNECT  
Figure 1. 8-Lead MSOP (RM Suffix)  
1
2
3
4
8
7
6
5
NC  
–IN A  
+IN A  
V–  
NC  
V+  
AD8551  
OUT A  
NC  
APPLICATIONS  
NC = NO CONNECT  
Temperature sensors  
Pressure sensors  
Precision current sensing  
Strain gage amplifiers  
Medical instrumentation  
Thermocouple amplifiers  
Figure 2. 8-Lead SOIC (R Suffix)  
1
8
OUT A  
–IN A  
+IN A  
V–  
V+  
OUT B  
–IN B  
AD8552  
4
5
+IN B  
Figure 3. 8-Lead TSSOP (RU Suffix)  
GENERAL DESCRIPTION  
1
2
3
4
8
7
6
5
OUT A  
–IN A  
+IN A  
V–  
V+  
OUT B  
–IN B  
+IN B  
AD8552  
This family of amplifiers has ultralow offset, drift, and bias  
current. The AD8551, AD8552, and AD8554 are single, dual,  
and quad amplifiers featuring rail-to-rail input and output swings.  
All are guaranteed to operate from 2.7 V to 5 V with a single supply.  
Figure 4. 8-Lead SOIC (R Suffix)  
OUT A  
–IN A  
+IN A  
V+  
+IN B  
–IN B  
1
14  
OUT D  
–IN D  
+IN D  
V–  
+IN C  
–IN C  
OUT C  
The AD855x family provides the benefits previously found only  
in expensive auto-zeroing or chopper-stabilized amplifiers.  
Using Analog Devices, Inc. topology, these new zero-drift  
amplifiers combine low cost with high accuracy. No external  
capacitors are required.  
AD8554  
OUT B  
7
8
Figure 5. 14-Lead TSSOP (RU Suffix)  
With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the  
AD855x are perfectly suited for applications in which error  
sources cannot be tolerated. Temperature, position and pressure  
sensors, medical equipment, and strain gage amplifiers benefit  
greatly from nearly zero drift over their operating temperature  
range. The rail-to-rail input and output swings provided by the  
AD855x family make both high-side and low-side sensing easy.  
OUT A  
1
2
3
4
5
6
7
14 OUT D  
13  
12  
11  
10  
9
–IN A  
+IN A  
V+  
–IN D  
+IN D  
V–  
AD8554  
+IN B  
–IN B  
OUT B  
+IN C  
–IN C  
OUT C  
8
The AD855x family is specified for the extended industrial/auto  
motive temperature range (−40°C to +125°C). The AD8551  
single amplifier is available in 8-lead MSOP and 8-lead narrow  
SOIC packages. The AD8552 dual amplifier is available in 8-lead  
narrow SOIC and 8-lead TSSOP surface-mount packages. The  
AD8554 quad is available in 14-lead narrow SOIC and 14-lead  
TSSOP packages.  
Figure 6. 14-Lead SOIC (R Suffix)  
Rev. E  
Document Feedback  
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  
rightsof third parties that may result fromits 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 andregisteredtrademarks 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 ©1999–2012 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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