i am using the ADC to monitor the analog voltages,

on pin 15 and 16 i see a 2.5VDC swing with a freq of 5KHZ when nothing is connected on the 24V_XR.
AD7928
Production
The AD7908 / AD7918 / AD7928 are, respectively, 8-bit, 10-bit, and 12-bit, high speed, low power, 8-channel, successive approximation ADCs. The parts operate...
Datasheet
AD7928 on Analog.com
i am using the ADC to monitor the analog voltages,

on pin 15 and 16 i see a 2.5VDC swing with a freq of 5KHZ when nothing is connected on the 24V_XR.
Hi, Nadeem191 .
Just want to confirm. Is the schematic given already in production? Or is this still for simulation? I suggest putting an analog-front-end before the ADC. Also, adding a connection to ground at the inputs will help in reducing noise or fluctuations. It is best practice to not leave any inputs floating as this may induced instability to the system.
Thanks and regards,
Jo
Hi Nathan,
its already in the production, all the inputs are connected or GND.
Hi,
Do you have scope shots/data that you can share with us?
Best regards,
Jo

Yel is pin 16 on u14 24vxr
Blue is spi4 clk
Hi,
Would it be possible to send your schematic to my email?
Thanks,
Jo
your email please
Hi,
I've already emailed you.
Thanks,
Jo