AnsweredAssumed Answered

AD7761 -> Only DOUT1 Active

Question asked by EngJunkie on Apr 5, 2018
Latest reply on Apr 26, 2018 by EngJunkie

Hey everyone,

 

This is slightly confusing me, but I have an AD7761 setup. The format pins are as follows:

 

Format 0 = 3.3V

Format 1 = 0V

 

The standby pins are both at 0V.

 

The mode is set to fast with the dataclock = Mclk.

 

For some reason the device only outputs data on Dout1. Dout0 remains low, no matter what I'm doing. When I power up the device, I apply a reset pulse.

 

Reset = 3.3V -> 0V -> 3.3V

 

then I apply two asynchronous start pulses, after this the device outputs data, the dataclock is active and the drdy pulses are active but again Dout0 remains low.

 

What could possibly be causing this? Am I initializing wrong?

 

Any help will really be appreciated!

 

Thank you in advance

Outcomes