ebuddy
Full Member level 3
Hi,
While I was reading the basic architecture of differential amplifier, I noticed that the differential pair (say, a nmos pair) usually has a pmos current mirror as its active load. Why pmos current mirror in stead of 2 diode connected pmos transistors? What is the difference? Thanks.
While I was reading the basic architecture of differential amplifier, I noticed that the differential pair (say, a nmos pair) usually has a pmos current mirror as its active load. Why pmos current mirror in stead of 2 diode connected pmos transistors? What is the difference? Thanks.