I simulated the ada4638-1 in multisim and just a simple unit gain buffer connection. But the simulation result shows the offset voltage is as high as 126 uV when supply voltage is +-10V, which is quite different to the data sheet.
Can anyone help me to solve it? thanks a lot!
The schematic and simulation result is as following:
Thanks for your reply !
It do works for +/-15V. But is there any method I can simulate the true offset voltage at +-10 V supply?
Try simulating with +/-15V. The Vos is set at certain supply voltages and then you
have the PSRR spec which will change the Vos when you change Vsy.
No. The model was written for +-15V, and no provisions were made for other supply voltages.
So do all your sims with +/-15V on the op amp, and +/-10V on the rest of your system.
I'll email the product line apps engineer.