Datasheet > INA117BM-3

INA117BM-3

更新时间： 2024-11-23 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

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INA117BM-3 数据手册

INA117

www.ti.com

High Common-Mode Voltage

DIFFERENCE AMPLIFIER

FEATURES

APPLICATIONS

ꢀ COMMON-MODE INPUT RANGE:

ꢀ CURRENT MONITOR

±200V (V_S= ±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

Ref_B

–In

+In

V–

Comp

V+

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.

V_O

Ref_A

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.

SBOS154A

Printed in U.S.A. December, 2000

12 3 4 5 6 7...17

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