Test Cases to measure INL and DNL in SAR ADC

Adithya P. OP #6267295
Rate this post
• ▲ useful
▼ not useful 
I have modeled acquisition and conversion of SAR ADC in LTSpice, Spec 
which i used is 
https://www.analog.com/media/en/technical-documentation/data-sheets/237820fb.pdf

I wanted to measure offset error, gain error, INL , DNL performance 
specs.
Unfortunately when i observed when I give input as ramp signal since 
there is  acq and conv cycles. I miss some of the data same in sine 
input.
During conversion there is no acquisition that what i have assumed and 
model.

I have attached screenshot of output. Here I have give ramp signal to 
measure quantitation error and V(005) is output after DAC from ADC I am 
subtracting it V(out)-V(in). Is this the right way?

How to procure transfer function  test case in SAR ADC?
Test and measure offset error, gain error, INL , DNL performance specs 
in SPICE?
Attached files:
Reply Quote Edit Move Thread sperren Anmeldepflicht aktivieren Anpinnen Delete topic Thread mit anderem zusammenführen Report post
Watch this topic

Reply

A question of your own? This thread is over 6 years old. Ask it in a thread of its own – more people read along there, and it gets answered more often and sooner.

Start a new thread

A fix, an addition or feedback on this thread? Then reply here.

Formatting
  • [c]C-Code[/c]
  • [code]code in other languages, ASCII drawings[/code]
  • [math]formula (LaTeX syntax)[/math]
  • [[Title]] – link to an article
  • Link to another post: right-click its post ID (#8078628), copy the address, paste it into the text

More about formatting

Post long source code as an attachment, not in the text.

Your name and e-mail address

Already registered? Log in

Not shown to anyone. We send you a link; your post appears once you confirm it there.

By submitting you create a free account and accept the terms of use.