INA149 Common-Mode Voltage Difference Amplifier

Texas Instruments INA149 High Common-Mode Voltage Difference Amplifier features the industry's highest Common-Mode Rejection Ratio (CMRR) for high input common-mode voltage (CMV) applications. With 100dB (Typ.) CMRR, the INA149 unity-gain difference amplifier can accurately measure small differential voltages in the presence of common-mode signals up to ±275V. The Texas Instruments INA149 inputs are protected from momentary common-mode or differential overvoltage up to 500V. This feature makes it an ideal solution for high accuracy, high voltage industrial applications.