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Variable Gain Implementation with AD8422 and Digital Potentiometer

Thread Summary

The user was attempting to connect a digital potentiometer (AD5293) to the Rg pins of an AD8422 amplifier to create a programmable gain. The issue was resolved by fixing a faulty SPI communication cable. No further design changes were necessary.
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Category: Hardware
Product Number: AD8422ARZ, AD8422

Hello. I am working on an amplifier circuit that uses an AD8422 as the main amplifier, and I would like to know if it is possible to connect a digital potentiometer to the Rg pins so it works as a programmable resistor, for example an AD5293, to increase the gain, since I am having trouble getting it to work properly. Both devices are powered with ±12 V.

What should I take into account to implement this in case it is possible?

Thanks in advance.

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