Sep 14, 2006 #1 J joskin Member level 1 Joined Mar 26, 2004 Messages 38 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 329 How to simulate the stability of SC CMFB loop in a full differential OPAMP?
Sep 14, 2006 #2 R renwl Advanced Member level 1 Joined Apr 26, 2004 Messages 452 Helped 27 Reputation 54 Reaction score 5 Trophy points 1,298 Location shanghai,china Activity points 1,805 sc cmfb stability joskin said: How to simulate the stability of SC CMFB loop in a full differential OPAMP? Click to expand... you can replace the switched capacitor by resistor to run simulation. the transient simulation is necessary.
sc cmfb stability joskin said: How to simulate the stability of SC CMFB loop in a full differential OPAMP? Click to expand... you can replace the switched capacitor by resistor to run simulation. the transient simulation is necessary.
Sep 15, 2006 #3 J joskin Member level 1 Joined Mar 26, 2004 Messages 38 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 329 Re: SC CMFB stability? renwl said: joskin said: How to simulate the stability of SC CMFB loop in a full differential OPAMP? Click to expand... you can replace the switched capacitor by resistor to run simulation. the transient simulation is necessary. Click to expand... Thanks! One more question. Because the OPAMP is applied in a SC integrator, how to model the external SC when running the simulation. Replace the SC by resistor?
Re: SC CMFB stability? renwl said: joskin said: How to simulate the stability of SC CMFB loop in a full differential OPAMP? Click to expand... you can replace the switched capacitor by resistor to run simulation. the transient simulation is necessary. Click to expand... Thanks! One more question. Because the OPAMP is applied in a SC integrator, how to model the external SC when running the simulation. Replace the SC by resistor?
Sep 15, 2006 #4 L laglead Full Member level 5 Joined Feb 21, 2006 Messages 262 Helped 22 Reputation 44 Reaction score 8 Trophy points 1,298 Activity points 2,693 Re: SC CMFB stability? You can replace SC with short circuit. Under steady state, although SC is work, the feedback voltage is steady and unchanged. So, SC can be omited
Re: SC CMFB stability? You can replace SC with short circuit. Under steady state, although SC is work, the feedback voltage is steady and unchanged. So, SC can be omited
Sep 17, 2006 #5 N nxing Advanced Member level 1 Joined May 10, 2004 Messages 421 Helped 25 Reputation 50 Reaction score 10 Trophy points 1,298 Location China Activity points 2,856 SC CMFB stability? run PSS simulation, you can include the switch.