Hello Olivier,
If the circuit is wired and operating properly you should not see such an offset at the output of U1A. In order to assist with this debug process, please provide the following:
The exact schematic of your circuit on the LMH730123…
Dear Team
Thank you for your reply. Your answers are very helpful for me.
1). Then, for example, to replace OP-Amp with "LMH6643", Power supply based on 5V supply, input bias current = -1.7uA (typ), If R = 4.53k, Vos = ± 7mV (max), can it be viewed…