Hi Team,
I'm selecting a low IB(<200pA through -40c~85C), low offset(<200uV) support up to 30V supply amplifier. It seems OPAx140 is a choice, but I can't find the Ib curve across -40C~85C as some other datasheet showed(Below curve are from OPA2277), can you help provide the curve or give me some data to show this, thanks a !
Best regards,
Sulyn Zhang
Hello Sulyn,
I am not sure why the Ib vs temperature was not included in the datasheet, but it is bounded by the maximum value listed in the Electrical Characteristics table; +/- 10 pA @ TA = 25 C, and +/-3 nA TA = –40°C to 125°C . However, what you are after is a Ib vs temperature curve for -40 C to +85 C. Please see the curve I have provided below. This should represent typical Ib vs temperature for the OPA140 over that temperature range.
Regards, Thomas
Precision Amplifiers Applications Engineering
