When measuring voltage signal with AD7683, the same board, different AD7683 chip, why some AD chip measurement accuracy is high, some AD chip measurement accuracy is low.Is there a quality problem with the chip?
I have some problem with AD7683: my STM receive from ADC all zeroes ("0").
Using AD7683 with STM32F429.
Power : 3,3V.
REF : 3V.
+IN : 0..3V.
-IN : GND.
DATACLOCK trying from 2,9MHz to 10KHz.
Using 24 bit hardware SPI and 22 bit software…
Assuming you're talking about the code from: BeMicro FPGA Project for AD7683 with Nios driver [Analog Devices Wiki] .
The 100 MHz clock is the system clock. The 2.3 MHz clock is the clock rate of the digital interface, in order to meet the…
The AD7683 has a Serial Data Clock Input - DCLOCK. You can vary the sampling frequency by changing the speed of a clock to DCLCOK input Since the conversion result on DOUT pin is synchronized to DCLOCK.
Note that the AD7683 is compatible…
I am interesting to use TL431 voltage reference to generate 5V to be used in Vref input of AD7683.
This voltage reference has low noise voltage enough for AD7683?
I am asking because many voltage reference devices inform noise voltage parameter…