Qustion abuot AD5174 Register Setting

Hi Kazu,

The command seems to be proper. Could you share the schematic so that i check if anything is wrong there.

Regards,

Koushik

Hi Koushik,

The schematic is as follows.  There are no decoupling caps at VDD in below sketch, actually 0.1uF and 10uF ceramic caps are connected between VDD and GND.

Regards,

Kazu

Hi Kazu,

What is the supply voltage of AD8034?

Make sure the power supply of AD8034 doesn't exceed the supply voltage of AD5174.

Regards,

Koushik

Hi Koushik,

The supply voltage of AD8034 is 5V the same as AD5174.

Regards,

Kazu

Hi Kazu,

Seems like you do not have any issues with your schematic.

I would suggest the probe the SDO line to make sure the part is working. Here is a sample on what you should expect on SDO line when you give your commands.

If you are not getting any data out, the part might have gone bad. Please replace the part and check again.

Let me know if you still face any issues.

Regards,

Koushik

Hey Kazu,

you forgot the pull-up resistor on the SDO. According to the datasheet page 7 (pinout) it is always needed.

Kind regards,

Niklas