Other Parts Discussed in Thread: REF3030, OPA2320
C2000 Team,
This post has some useful information on the reference circuit for TMS320F2837x devices:
https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/477506/1721275#1721275
The minimum recommended configuration here is a single reference, e.g. REF3030, and one buffer amp per two ADCs, e.g. a single OPA2320. The cost of this add up, especially in 12-bit mode where you should not need quite as good a reference as in 16-bit mode.
QUESTION: Have we ever looked at the performance with a low-cost shunt regulator for the reference, such as the LM4040C30, with or without buffering? This would be for 12-bit mode.
Regards,
David