Hello I have a Problem with the supply current of the AD7790.
I choose the device in fact of the low consumption , normally < 1mA.
We use different devices on the SPI-Bus, which are selected with the corresponding #CS-Signal.
Sometimes, after an SPI communication [I didn't choose the AD7790] , the supply current of the AD7790 increase up to 4mA until I communicate directly with the AD7790 and start a conversion. At this time the current decrease again to the normal value ?
What happend inside the device, can you help me ?