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Single conversion mode in AD7734

Question asked by Jaiganesh7681 on Nov 25, 2011
Latest reply on Dec 12, 2011 by Jaiganesh7681

HI all,


I am new to AD7734 device. I am trying to implement single conversion mode in AD7734. ADC is interfaced using SPI.


I am sending the following commands to ADC 0x384A, 0x394A, 0x3A4A.  As per this configuration, I am initiating the single conversion on each channel. Finally I will read the status and data register from each channel.(Dump mode). However, when I read the data, only the RDY bit for last selected channel(0x3A4A) data is getting set and for the first 2 channels the RDY bit status register is always low. Please help me to understand why the data register and status register are not updated for first two channels in single conversion mode?