andover
Newbie level 4
class-ab op-amp
Hi guys,
I have a question about two transistor class AB opmap. For small signal analysis, it is linear around Q point so that vout=vin*gain. However, for Class AB opamp, the input ranges from rail to rail, and due to square law, Id is proportional to (vin-vth)^2, which introduces distortion in the output. How do the opamp suppose to work?
Thanks
Andover
Hi guys,
I have a question about two transistor class AB opmap. For small signal analysis, it is linear around Q point so that vout=vin*gain. However, for Class AB opamp, the input ranges from rail to rail, and due to square law, Id is proportional to (vin-vth)^2, which introduces distortion in the output. How do the opamp suppose to work?
Thanks
Andover