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INA191: maximum voltage noise density and plots over temperature

Part Number: INA191



My customer is considering INA191 for new optical module design.

Voltage noise density is critical factor for their design.

Though the datasheet states typical voltage noise density is 75nV/(Hz^0.5), they would like to know maximum value and plots over temperature.

Is it possible to provide the requested data?


Best regards,



  • Hello Kazuhiko,

    These are not test we have data for currently. Much of the noise spectrum can be attenuated with a simple RC filter on the output and/or digital filtering with the ADC. I would not expect the noise density to increase dramatically over temperature. I would approximate the six sigma increase in the noise to be about 20%.