Hi ian wu,
How are you planning on achieving 1ppm accuracy? Is that only at room temperature?
Note that the ADS1256 has an INL spec of 3ppm typical, so you will need to perform some sort of linearity correction in addition to "standard" offset and…
Part Number: ADS127L21B Other Parts Discussed in Thread: ISO6041 , TIDA-010970 , ADS127L21 e2e,
I would like to add ISO6041 digital isolation between ADS127L21B digital output lines and the off board connector for the TIDA010970 Low-Noise, Highly Linear…
Hello Jimmy,
We just released a reference design that is targeted for 7.5 digit DMM. It looks like we do not have it linked on the DMM reference page and will need to get it added.
https://www.ti.com/tool/TIDA-010970
Regards, Keith Nicholas Precision…