Hello everyone,
I've been searching the usual suspect websites for hours, and my eyes are starting to bleed. Unfortunately, none of the sites have a good filter for Ibias(max) over full temperature range, and it can be very, very different than Ibias max at 25C.
I'm hoping one of you here may have already run across something with the specifications I'm looking for.
Op-Amp. At least 30V supply range. Lowest noise possible/reasonable. Ibias < 1nA over full -40 to 125C range.
Low-ish offset and offset drift are nice-to-have, but low noise is the primary concern.
ADA4523 is a good fit, but the Iq per amplifier is painful. There will be 25 of these on the board, and that power/heat starts to add up really fast.
So basically, I'm looking for a wide temperature range, low iBias, very low noise amplifier with a more reasonable Iq than ADA4523.
If anyone has any thoughts, I would really appreciate it.
Thank You!
Ben