Jan 14, 2009 #1 M mickey0908 Junior Member level 2 Joined Jun 15, 2006 Messages 22 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,412 When simulation the output impandence, there is a big difference output impandence when use difference static bias current to simulation the output impandence? I used the OP feedback to increase the output impandence.
When simulation the output impandence, there is a big difference output impandence when use difference static bias current to simulation the output impandence? I used the OP feedback to increase the output impandence.
Jan 14, 2009 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,513 Helped 14,758 Reputation 29,798 Reaction score 14,128 Trophy points 1,393 Location Bochum, Germany Activity points 298,483 difference static bias current Click to expand... ??? By definition, a bias current isn't differential.
difference static bias current Click to expand... ??? By definition, a bias current isn't differential.
Jan 14, 2009 #3 M mickey0908 Junior Member level 2 Joined Jun 15, 2006 Messages 22 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,412 Hi FvM, How to simulate the output impandence of cascode current mirror? Maybe I used a mistake simulation method.
Hi FvM, How to simulate the output impandence of cascode current mirror? Maybe I used a mistake simulation method.
Jan 16, 2009 #4 L lllxb Junior Member level 2 Joined Jun 10, 2008 Messages 22 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Activity points 1,410 It should be no surprise to see output resistance variation with biasing current variation, since both ro and gm of MOS are stongly current dependant.
It should be no surprise to see output resistance variation with biasing current variation, since both ro and gm of MOS are stongly current dependant.