The AD8622 may be worth a look
I found that AD797 and AD8622 mention the current limit for protecting differential input voltage.
For AD797, it says that external resister is necessary.
On the other hand AD8622 has internal resister(500ohm).
Does AD8676 has inside protection…
I tried AD8622 but the drift is not improved as attached. Could you tell me the expected drift range of AD8622 and how to calculate? Because I need to minimize the drift as much as possible under 10pA to meet our requirement.
I want to use the AD8622 at +/-5V to drive a 10uF capacitor. Will that cause a stability problem?
Please don't hesitate to ask if you have further questions on the part.
May I ask how you plan on using the AD8622?
I am looking for some concrete examples of how to use the correlated and uncorrelated current noise specifications in noise calculations. For example, the attached .pdf has an simple example circuit and calculation using the specifications for the AD8622…