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INA117 PDF预览

INA117

更新时间: 2024-11-02 22:48:07
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14页 194K
描述
High Common-Mode Voltage DIFFERENCE AMPLIFIER

INA117 数据手册

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®
INA117  
INA117  
INA117  
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.  
International Airport Industrial Park  
Mailing Address: PO Box 11400, Tucson, AZ 85734  
Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706  
• Tel: (520) 746-1111  
Twx: 910-952-1111 Internet: http://www.burr-brown.com/  
Cable: BBRCORP Telex: 066-6491  
FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132  
© 1987 Burr-Brown Corporation  
PDS-748G  
Printed in U.S.A. August, 1999  

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