Dec 23, 2005 #1 C Chethan Full Member level 3 Joined Jul 11, 2005 Messages 171 Helped 20 Reputation 40 Reaction score 12 Trophy points 1,298 Location Bangalore Activity points 2,837 hi, can someone upload the setup method of how to do CMRR simulation for an p channel differential amplifier. Thanx in advance
hi, can someone upload the setup method of how to do CMRR simulation for an p channel differential amplifier. Thanx in advance
Dec 23, 2005 #2 B bsrivastava Member level 2 Joined Sep 9, 2005 Messages 48 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,288 Activity points 1,701 refer page 631 of Baker & Li. This is when you want same testbench to get the CMRR. I did it by calculating Ad and Acm separately and calculate CMRR. let me know if it is still unanswered. -Bharat
refer page 631 of Baker & Li. This is when you want same testbench to get the CMRR. I did it by calculating Ad and Acm separately and calculate CMRR. let me know if it is still unanswered. -Bharat
Dec 23, 2005 #3 BigBoss Advanced Member level 7 Joined Nov 17, 2001 Messages 6,034 Helped 1,611 Reputation 3,230 Reaction score 1,604 Trophy points 1,393 Location Türkiye Activity points 36,305 Inputs should be short circuited and check the AC gain of the amplifier. Don't apply much signal to the inputs. Normally CMRR will be 60dB-100dB but after the layout and extraction, the exact CMRR will appeared due to asymetry of the circuit.
Inputs should be short circuited and check the AC gain of the amplifier. Don't apply much signal to the inputs. Normally CMRR will be 60dB-100dB but after the layout and extraction, the exact CMRR will appeared due to asymetry of the circuit.
Dec 24, 2005 #4 F firry Junior Member level 3 Joined Dec 3, 2005 Messages 28 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,473 refer page 313 of Allen&Holberg. it shows you how to simulate the PSRR and CMRR.
Dec 25, 2005 #5 B beckchm Banned Joined Nov 13, 2005 Messages 190 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,298 Activity points 0 the reference is not very detailed.