Patrick Yang
Junior Member level 1
Hi guys,
I‘m a freshman in IC design. I try to design a folded-cascode opa, and i met a problem that when Vcm increases, the Av and GBW also increase and vice versa. simulation shows that the gm changes little inspite of increasing in Vcm. GBW = gm/Cc, this value shouldn't change. I really need help !Thank in advance
I‘m a freshman in IC design. I try to design a folded-cascode opa, and i met a problem that when Vcm increases, the Av and GBW also increase and vice versa. simulation shows that the gm changes little inspite of increasing in Vcm. GBW = gm/Cc, this value shouldn't change. I really need help !Thank in advance