I received this question from a customer:
I’ve attached a picture of the logic analyzer capture. I have two questions.
I need C code for AD5522,and my Controller is STM32F429BIT6.My system have two AD5522,
I also need C code for AD7685 or AD7686 .
Thanks for the response.
Is it not OK to use the AD7690 as single ended? Just taking IN- to GND like on the AD7686? We went for the AD7690 because of the 18-bits.
In this case would the common mode voltage matter if I am only using IN+ ?
The conversion rate appears to be from 0 to 500Ksps and the conversion clock appears to be internal, but I cant find a control reg to set the rate. Oddly missing information in the DS...
The customer is having Vin+=DC voltage and Vin-= GND. What is the value of the DC voltage? This should work if Vin+= Vref. Please take note that the AD7688 is a differential ADC, it is expecting that the input of Vin+ and Vin- is opposite…
PLease see attached list of the ADIs some of the latest differential ADCs with less tahn 2 LSB INL error. I have short listed this ADCs for DAQ systems application. I have included in the column on the file the throughput rate and full power…