We placed the ADC directly on the board. there are no wires at all. And they installed the RC filter, everything became a little better, but the last 4 bits still jump a lot. We also tried to measure the AD627 without an operational amplifier. With a circuit without an amplifier, everything works almost perfectly, only the last 1-2 bits jump. However, we need an operational amplifier for our applications, and the ADC accuracy is at least 14-bit. Tell me if we can manage only the RC circuit on the output ??? Or what else can you do to improve accuracy?
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