Trying to input -2.5v to 2.5v using a differential amplifier (ad8139)
At this time, in order to swing at 2.5V, FDA set VCM to 2.5V. (result is a 0V to 5V swing.)
When connect ad9220 differential input, should we connect differential opamp output positive to VINA and negative to VINB?
How do I connect REFCOM, SENSE, and VREF?
The reference voltage of 2.5V will be input externally.
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[edited by: kagoai at 8:05 AM (GMT -5) on 14 Dec 2022]