CODEC AD1836A AD converter working in differential input mode: ( Gain=1)
ADC2 Left Input 1=2.25V +small AC signal
ADC2 Left input 2=2.25V
Differential mode setting and gain=1.
The Data sheet says
Full-Scale Input Voltage (Differential) 2.18V ( RMS), 24 bit ADC
My question is :
(1) If differential input voltage= -0.1V, what is the ADC2 digital output? Is ADC2 unipolar or bipolar?
(2) If differential input voltage=0.1V, what is the ADC2 digital output?
(3) if the differential input voltage is constant DC voltage, then will the ADC 2 output be zero?
We have experience with other ADC, such as AD7714, but not familiar with ADC for CODEC.
we would like understand, verify and test how CODEC ADC works.