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Burr-Brown Corporation - High Common-Mode Voltage DIFFERENCE AMPLIFIER

Numéro de référence INA117P
Description High Common-Mode Voltage DIFFERENCE AMPLIFIER
Fabricant Burr-Brown Corporation 
Logo Burr-Brown Corporation 





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INA117P fiche technique
®
INA117
INA117
INA117
High Common-Mode Voltage
DIFFERENCE AMPLIFIER
FEATURES
q COMMON-MODE INPUT RANGE:
±200V (VS = ±15V)
q PROTECTED INPUTS:
±500V Common-Mode
±500V Differential
q UNITY GAIN: 0.02% Gain Error max
q NONLINEARITY: 0.001% max
q CMRR: 86dB min
APPLICATIONS
q CURRENT MONITOR
q BATTERY CELL-VOLTAGE MONITOR
q GROUND BREAKER
q INPUT PROTECTION
q SIGNAL ACQUISITION IN NOISY
ENVIRONMENTS
q 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.
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.
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.
21.11k
RefB 1
380k
–In 2
380k
+In 3
V– 4
380k
20k
8 Comp
7 V+
6 VO
5 RefA
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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