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INA117BM-3 PDF预览

INA117BM-3

更新时间: 2024-11-03 12:05:15
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
17页 312K
描述
High Common-Mode Voltage DIFFERENCE AMPLIFIER

INA117BM-3 数据手册

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INA117  
IN  
A
11  
7
INA117  
www.ti.com  
High Common-Mode Voltage  
DIFFERENCE AMPLIFIER  
FEATURES  
APPLICATIONS  
COMMON-MODE INPUT RANGE:  
CURRENT MONITOR  
±200V (VS = ±15V)  
BATTERY CELL-VOLTAGE MONITOR  
GROUND BREAKER  
PROTECTED INPUTS:  
±500V Common-Mode  
±500V Differential  
INPUT PROTECTION  
SIGNAL ACQUISITION IN NOISY  
UNITY GAIN: 0.02% Gain Error max  
NONLINEARITY: 0.001% max  
CMRR: 86dB min  
ENVIRONMENTS  
FACTORY AUTOMATION  
DESCRIPTION  
The INA117 is a precision unity-gain difference  
amplifier with very high common-mode input voltage  
range. It is a single monolithic IC consisting of a  
precision op amp and integrated thin-film resistor  
network. It can accurately measure small differential  
voltages in the presence of common-mode signals up  
to ±200V. The INA117 inputs are protected from  
momentary common-mode or differential overloads  
up to ±500V.  
21.11kΩ  
RefB  
–In  
+In  
V–  
Comp  
V+  
1
2
3
4
8
7
6
5
380kΩ  
380kΩ  
380kΩ  
20kΩ  
In many applications, where galvanic isolation is not  
essential, the INA117 can replace isolation amplifiers.  
This can eliminate costly isolated input-side power  
supplies and their associated ripple, noise and quies-  
cent current. The INA117’s 0.001% nonlinearity and  
200kHz bandwidth are superior to those of conven-  
tional isolation amplifiers.  
VO  
RefA  
The INA117 is available in 8-pin plastic mini-DIP and  
SO-8 surface-mount packages, specified for the –40°C  
to +85°C temperature range. The metal TO-99 models  
are available specified for the –40°C to +85°C and  
–55°C to +125°C temperature range.  
Copyright © 2000, Texas Instruments Incorporated  
SBOS154A  
Printed in U.S.A. December, 2000  

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