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INA146: Maximum commum voltage with Single Supply Operation

Raphael Marchi
Intellectual 1260 points
Part Number: INA146
Other Parts Discussed in Thread: INA148

Hello, team,

Can INA146 operate w/ 200V Common-mode voltage across the Vin (+) and Vin (-) pins ? My customer needs a 200V current shunt Amplifier  w/ 100x Gain and my only choice was this device.

Tks

Raphael 

  • 0
    TI__Genius 10850 points

    Hi Raphael,

    Thanks for your post, I can help you. The INA146 can withstand common-mode voltages up to 100V. Anything beyond that will result in non-linear behavior. The INA148 can operate with common-mode voltages up to 200V, but this is a unity gain difference amplifier.