EmbDev.net

Forum: Analog Circuits Test Cases to measure INL and DNL in SAR ADC


Test Cases to measure INL and DNL in SAR ADC
von Adithya P. (pai)

Attached files:
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?

: Edited by User
Report post Edit Move Thread sperren Anmeldepflicht aktivieren Anpinnen Delete topic Thread mit anderem zusammenführen Quote selected text Reply Reply with quote
Watch this topic | Disable multi-page view
Please log in before posting. Registration is free and takes only a minute.
Existing account
Do you have a Google/GoogleMail account? No registration required!
Log in with Google account
No account? Register here.