Question about AD5724 Power Control Register

Hi Kazu,

Just want to be sure, are you using AD5724? Or is it AD5724R? 

AD5624R's Power Control Register [DB4] is assigned as PUref, which has a default value of 0 which means the internal reference is in power-down mode, it needs to be set to 1 to power it up and get the proper output.

Cheers,

Ivan 

Hi Kazu,

Just want to be sure, are you using AD5724? Or is it AD5724R? 

AD5624R's Power Control Register [DB4] is assigned as PUref, which has a default value of 0 which means the internal reference is in power-down mode, it needs to be set to 1 to power it up and get the proper output.

Cheers,

Ivan 

Hi Ivan,

I'm using AD5724, not AD5724R. The AD5724 data sheet Table 26 is showing that DB4 is set to 0.

Thanks,

Kazu

Hi Ivan,

Could you take care of this case?

Thanks,

Kazu

Hi Kazu,

Sincere apologies for the delay, I will discuss this with the design and will get back to you as soon as possible.

Cheers,

Ivan

Hi Kazu,

One more question, I assume that the external reference voltage is applied to the reference pin, correct?

Cheers,

Ivan

Hi Ivan,

The external reference was not connected. Now I fix the issue. Very sorry to trouble you.

Thanks,

Kazu