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AD5421 low loop current support


Our customer is currently using AD421 for the GAS detector(sensor node) application, but the customer requested to review AD5421 for price issue.

AD421 is being used in the range under 3.2mA(0mA, 2mA, 3mA), but I want to make sure if AD5421 is applicable in the setting of 0mA, 2mA, 3mA condition.