urian
Full Member level 3
Hi,there
I am designing a simple 2 stage opamp,and the vdd is 1.5v and vcm is 0.7v.
I use two vdc instances for the vin+ and vin-,and set AC magnitude to ±500mv and ±1mv for the two vdc.When I run ac analysis and see the gain&phase,I found the result is different.I wonder whether the magnitude of the AC magnitude property of the vdc will influence the simulation.I think the magnitude can be set free before,am I wrong?
Thanks in advance.
I am designing a simple 2 stage opamp,and the vdd is 1.5v and vcm is 0.7v.
I use two vdc instances for the vin+ and vin-,and set AC magnitude to ±500mv and ±1mv for the two vdc.When I run ac analysis and see the gain&phase,I found the result is different.I wonder whether the magnitude of the AC magnitude property of the vdc will influence the simulation.I think the magnitude can be set free before,am I wrong?
Thanks in advance.