Sep 17, 2013 #1 A addanki Newbie level 2 Joined Sep 15, 2013 Messages 2 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 10 Hi..can someone help with as to why pmos is preferred to be used as an active load than an nmos??
Sep 18, 2013 #2 goldsmith Advanced Member level 6 Joined Dec 14, 2010 Messages 3,981 Helped 741 Reputation 1,486 Reaction score 726 Trophy points 1,413 Location Tehran - IRAN Activity points 24,546 Hi..can someone help with as to why pmos is preferred to be used as an active load than an nmos?? Click to expand... Hi addank Because the pmos can be easily tied to the positive rail supply so it would be simpler to make a current source in drain or collector path via that in order to reflect ro into that section to make a pretty high impedance . Best Wishes Goldsmith
Hi..can someone help with as to why pmos is preferred to be used as an active load than an nmos?? Click to expand... Hi addank Because the pmos can be easily tied to the positive rail supply so it would be simpler to make a current source in drain or collector path via that in order to reflect ro into that section to make a pretty high impedance . Best Wishes Goldsmith