We have received this inquiry from our customer,
Consider a circuit with two OPA569 power amps (Parallel Out pins connected to each other) below, although ENABLE is not shown - if A1 is disabled via ENABLE pin, what would be the impact on the active A2 (other than less output current)? Could A2 function independently (provide power to R-load) with A1 disabled or would we have a degraded output on A2?
I understand that the OPA569 can be used for multiplexing as stated at page 14 of the datasheet but it seems that it doesn't meet the second design consideration at page 2 of the article, "Using Operational Amplifiers as Multiplexers in Cost Optimized Designs", below because it has an input clamping diode. Can you please confirm if the OPA569 can be used in parallel configuration while one is enabled and the other one is disabled?