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PCM9211: Input impedance of the ADC

Part Number: PCM9211

Hi there,

What's the tolerance of the input impedance of the ADC in PCM9211?

By back-calculation using the ADC result and the external resistor divider, my customer found that it varies from 8.5 kohm to 10 kohm in 10 different ICs.

Thanks!

Best regards,

Roy Hsu