SBOA001A January   2000  – June 2020 INA117

 

  1.   Increasing INA117 and INA149 Differential Input Range Application Report
    1.     Trademarks
    2. 1 Introduction
    3. 2 Device Overview
    4. 3 Optional CMRR Adjustment

Increasing INA117 and INA149 Differential Input Range Application Report

The INA117 is a monolithic difference amplifier with the unique ability to accept up to ±200V common-mode input signals while operating on standard ±15V power supplies. Because the gain of the INA117 is set at 1V/V, and because the output would saturate into the rails at about ±12V, the maximum specified differential input range is ±10V. The INA117 is available in three standard 8-pin packages: hermetic TO-99, plastic DIP, and the small surface-mount SOIC package, specified for the -40ºC to +85°C temperature range.

Similarly, the INA149 is a precision 36V unity-gain difference amplifier with a very high input common-mode voltage range (±275V). On standard ±15V power supplies, the maximum specified differential input range is ±13.5V. The INA149 is available in the SOIC-8 package with operation specified over the extended industrial temperature range of -40°C to +125°C.