AD623 is better than AD620 in practical use. AD623 can use single power supply, belonging to rail-to-rail operational amplifier, but the power supply range of AD623 (± 6v@) is much smaller than that of AD620(± 18v@)
Secondly, the internal bias of AD623 is indeed much smaller than that of AD620. When we actually debugged the module, we found that AD623 basically did not need to adjust the bias. The ac is basically symmetric relative to the point
Finally, the bandwidth of AD623 is different from that of AD620, and the bandwidth of AD620 is slightly wider than that of AD623.
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