AnsweredAssumed Answered

AD7124-4 DOUT/RDY Pin Toggling

Question asked by bentscho on Jul 13, 2016
Latest reply on Jul 13, 2016 by bentscho

Hi,

 

a similar problem came up in this forum, however i couldn't find a working solution for me.

The Problem is the SPI communication with the AD7124-4 at 3.3V.

I use the following setup:

AVDD = IOVDD = 3.3 V

AVSS = DGND = GND

 

When i run the setup at 3.3 V i get the following signals on the SPI when i try to read the IDRegister:

1: DIN

2: DOUT

3: SCLK

4: CS

 

TEK0000.JPG

 

If i use 3V instead, i get the following signals:

TEK0002.JPG

And i get the expected answer of 0x02 when reading the IDRegister.

 

 

Thanks in advance

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