Other Parts Discussed in Thread: TPS7A47-Q1, ADS1256, REF5050
I have an INA821 instrumentation amplifier, he said his output noise at 0.1-10Hz is 2.5uV (assuming the input signal noise is lower than 2.5uV), I use a single supply of 10V to the INA821. So should I choose an LDO with less than 2.5uV noise?
Or does the power supply noise actually not affect the noise at the final output of the instrumentation amplifier?
What kind of LDO should I choose to achieve the performance of INA821?
P.S.My input signal is between 0.5-20hz