I'm trying to get an AD5422 working. I can't get an output signal or register data from a readback.
Here it the schematics I use:
DVcc = 3.36V, AVdd = 11,93V, AVss = 0V, Clear = 0V;
Vout stays always about 16mV.
- I removed IC13, R57 and T11 an connected Vout with +Vsense. Same problem.
- I changed the AD5422. No change.
Here the plots from the SPI-bus.
Yellow = Latch, Blue = CLK, Purple = SDI, Green = SDO
Set config (Rext = on, 0-5 Range, Enable output):
Set data value:
I can't figure out, what is wrong.
Can someone pleas assist me?