Hi,
Let me ask you some questions as below.
Q1) Operating voltage
About operating voltage, I understood following. Is my understanding correct?
(Vs-) --- (Vs+) - 2.5V : JFET Stage amp
Over (Vs+) - 2.5V : Aux-Stage (CMOS) amp
Q2) Input offset voltage
Following is the offset data in case of Vs+ = 5V, FIgure 43 (datasheet P21)
I understood that the JFET-stage works between -2.8V to 0V and Aux-stage works 0V to 2.8V.
If my understanding is correct, the input offset has varied at 0V the boundary between JFET and Aux.
Is my idea right?
Q3) Distortion happened
I suppose there also something distortion will happen when the input signal crosses the boundary.
So to keep the accuracy, we should use OPA2810 within (Vs+) - 2.5V, correct?
Thank you for your support.
Best Regards,