Other Parts Discussed in Thread: DAC81404, DAC81402, DAC61402
Hi Experts,
Seeking your assistance on this query from Cx about DAC61404 device ID.
I'm currently working with the DAC61404 to create a threshold voltage for a comparator.
I'm trying to read the device ID from register 0x01 to confirm the (SPI) communication is working. I'm a bit confused, since I read back 0x0930 instead of the 0x0920 given in the datasheet on page 34/35. I skipped the comparison in my code first, to verify the rest of my code is working, and I can switch on the internal reference and write successfully to the DAC output registers to "generate" the voltages at the outputs.
Is there a chance the value in the datasheet is incorrect, otherwise I don't know how I read back 0x0930 instead of 0x0920. I even hooked up a signal analyzer to independently read the value and tried different (SPI) clock speeds, but still the same result. Please have a look at the attached image for my read request followed by the shifting out of the requested data.
***
I couldn't find any related posts here (I see two but not about the 0920H).
For your assistance. Thank you.
Regards,
Archie A.
