Hi,
As per CN-0382 Circuit note AD7124 SPI communication input pins CS, SCLK & DIN are connected to Adum1441 logic input points VIA,VIB & VIC and SPI communication output pins DOUT connected to Adum1441 logic output point VOD.
But CN-0376 Circuit note AD7124 SPI communication input pins CS, SCLK & DIN are connected to Adum1441 logic output points VOA,VOB & VOC and SPI communication output pins DOUT connected to Adum1441 logic input point VID.
we need to connect AD7124 SPI communication to Microcontroller through ADUm1441 SPI isolator.
Please confirm and suggest suitable circuit notes and required connection direction for my application.
Thank You,
Rajan
Hi Rajan,
The schematic shown in CN-0376 is correct. I'll alert the author of the other app note that there's an error in the redrawn schematic.
Hi DaveC,
Thank you for your confirmation