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AD8228_16

更新时间: 2024-11-19 00:51:55
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
25页 550K
描述
Low Gain Drift Precision Instrumentation Amplifier

AD8228_16 数据手册

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Low Gain Drift  
Precision Instrumentation Amplifier  
AD8228  
CONNECTION DIAGRAM  
FEATURES  
Easy to use  
1
2
3
4
8
7
6
5
+V  
V
–IN  
G1  
G2  
+IN  
S
Pin strappable gains of 10 and 100  
Wide power supply range: 2.3 V to 18 V  
DC specifications (B Grade, G = 10)  
2 ppm/°C gain drift  
OUT  
REF  
–V  
S
AD8228  
TOP VIEW  
(Not to Scale)  
0.02% gain error  
50 μV maximum input offset voltage  
0.8 μV/°C maximum input offset drift  
0.6 nA maximum input bias current  
100 dB CMRR  
Figure 1.  
AC specifications  
650 kHz, –3 dB bandwidth (G = 10)  
2 V/μs slew rate  
Low noise  
8 nV/√Hz, @ 1 kHz (G = 100)  
0.3 μV p-p from 0.1 Hz to 10 Hz (G = 100)  
Table 1. Instrumentation Amplifiers by Category  
APPLICATIONS  
General Zero  
Purpose Drift  
Military Low  
Grade Power  
High Speed  
PGA  
Weigh scales  
Industrial process controls  
Bridge amplifiers  
Precision data acquisition systems  
Medical instrumentation  
Strain gages  
AD82201 AD82311 AD620  
AD6271  
AD6231  
AD8250  
AD8251  
AD8253  
AD8221  
AD8222  
AD85531 AD621  
AD85551 AD524  
AD82241 AD85561 AD526  
AD8228  
AD85571 AD624  
Transducer interfaces  
1 Rail-to-rail output.  
GENERAL DESCRIPTION  
The AD8228 operates on both single and dual supplies. Because  
the part can operate on supplies up to ±±8 , it is well suited for  
applications where high common-mode input voltages are  
encountered. The AD8228 is available in 8-lead MSOP and  
SOIC packages.  
The AD8228 is a high performance instrumentation amplifier  
with very high gain accuracy. Because all gain setting resistors  
are internal and laser trimmed, gain accuracy and gain drift  
are better than can be achieved with typical instrumentation  
amplifiers.  
Performance is specified over the entire industrial temperature  
range of −40°C to +85°C for all grades. Furthermore, the AD8228  
is operational from −40°C to +±25°C. For a pin-compatible ampli-  
fier with similar specifications, but with a gain range of ± to ±000,  
see the AD822±.  
Low voltage offset, low offset drift, low gain drift, high gain  
accuracy, and high CMRR make this part an excellent choice  
in applications that demand the best dc performance possible,  
such as bridge signal conditioning.  
Rev. 0  
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 registeredtrademarks arethe 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  
©2008 Analog Devices, Inc. All rights reserved.  
 

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