Search FAQs on the left to see if your question has been answered. Click on the dropdown to view all of the documents associated with the product. If you can't find your question, click on Ask a Question

Difference between pseudo-differential and single-ended mode of an ADC

Can you explain the difference between pseudo-differential mode of an ADC and
single-ended mode?

 

In single-ended mode you use one input only for your signal.

In pseudo differential mode, a second input is used (IN+ and IN-).  On the
positive input IN+ the single-ended signal is applied.

On the negative input IN- you apply a DC voltage to shift your signal. The
voltage applied to this input provides an offset from ground or a pseudo ground
for the VIN+ input. The benefit of pseudo differential inputs is that they
separate the analog input signal ground from the ADC’s ground allowing dc
common-mode voltages to be cancelled.
Comments
Anonymous
Related