Question: Q 8 . An instrumentation measuring system uses a differential amplifier having a CMRR of 1 2 0 dB and differential gain of 1 0

Q8. An instrumentation measuring system uses a differential amplifier having a CMRR of 120 dB and differential gain of 105. The maximum differential input signal is 60V. If the amplified noise voltage is specified to be not more than 1% of the maximum output voltage, calculate the maximum common mode voltage that can be present in the input to the amplifier.

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