The protection should work in normal or power-down mode. However, when device is powered-down I think it is recommended to tie both inputs to GND. The overvoltage clamp is use for transient overvoltage condition and not recommended to be active for…
I am using the Eval-AD7609 without the CED Board but I am not able to get a busy signal or any data output. I have provided the control signals and the power supplies through a microcontroller, the connections are shown below.
Page 22 of the data sheet (top right) says with Vdrive>3.3V, SNR is reduce by ~1.5dB when reading during conversion. Is this delta about the same for Vdrive=2.5V? Also, is SNR generally improved for lower Vdriver?
I'm using AD7609BSTZ with an anti-aliasing filter at the input, but the last digit in the count is varying by +/- 5 counts from the actual Count . Is there any solution to have a stagnant value as we require high precision?