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Hello! How I can do system calibration ADC of ADUCM360 with external reference with different PGA?

Question asked by nikolay-k. on Dec 11, 2017
Latest reply on Dec 18, 2017 by barryzhang

I cannot understand how I can calibrate ADC with PGA not equal 1.
When I calibrate system with PGA1 I feed reference voltage to AIN - profit! But what I should feed if PGA is more 1?