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Tool/software:
Hi teams,
I would like to ask you do you have date of Ibias offset tolerance at 50℃ on OPA2187?
I would be design for next model and I will use OPA2187.
On this calucilation about circuit tolerance, I need above information.
Do you have data as below picure?
Or, do you have similar date as that one?
Best regards,
Tomo Akiyama
Tomo,
best regards, Art
Adding to Art's comments, up to around 80 deg C, the current from chopping action of the front-end switches dominates the total IB while above 85 deg C reverse bias leakage current of ESD diodes becomes a dominant source of IB. For this reason at 50 deg C, IB distribution would be similar to its room temperature distribution and based on the max IB of +/-350pA could be represented by the following histogram.
Hi Ark, Marek,
Thank you for your reply.
It is very helpful for circuit design.
I appriciate your kindly support!
Best regards,
Tomo Akiyama