Hello,
The customer use ISO7140FCC to digital input(SCLK etc.) of DAC1220.
The DAC1220 dital input pins absolute maximum rating is "–0.3 to DVDD + 0.3"
If we use ISO7140FCC with VCCI=3V and VCCO=0V, the output is Undetermined state.
In this case, are there any possibility of violation for DAC1220 digital input pin?
Best Regards,
Ryuji Asaka