In the "ADS1271EVM & ADS1271EVM-PDK User's Guide", it is said that "J3 provides connection to the common power bus for the ADS1271EVM."(Pg 4) For J3.1 and J3.2,they stand for "+AVDD: +15V to power buffer amplifier"and"–AVDD: –15V to power buffer amplifier section".(Pg 4) If I use these two "OPA1632" buffer amplifiers, should I connect +/- 15V reference supply with these two pins respectively, shouldn't I? If so, I can supply these two reference voltages by on "+/- VA "pins on MMB0 board or "J4.3/J4.4","J5.3/J5.4" on EVM(Pg 3),right?
Thanks a lot!
Hi again Yixi,
Yes, you can apply your +/-15V to the +/-VA terminals on the MMB0 to drive the OPA1632 buffers on the ADS1271EVM.
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