PCM9211 ADC input

Panson Poon

Intellectual 420 points

Is it necessary or recommended to add opamp (buffer) for ADC analog inputs?

over 12 years ago

0 Converter Apps over 12 years ago

TI__Mastermind 28585 points

Hi.

It should not be necessary unless you have a very small input signal which needs more than 20 dB of gain, it would be wise to add some external gain to get the input near full scale which is 1 Vrms.

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PCM9211 ADC input