Feb 22, 2005 #1 M mitgrace Full Member level 6 Joined May 8, 2004 Messages 367 Helped 6 Reputation 12 Reaction score 2 Trophy points 1,298 Activity points 2,526 Dear All : Does Anyone know how to simulate the input reference noise using hspice or spectre-RF , Thanks
Dear All : Does Anyone know how to simulate the input reference noise using hspice or spectre-RF , Thanks
Feb 22, 2005 #2 L layes2 Full Member level 4 Joined Dec 3, 2004 Messages 230 Helped 10 Reputation 20 Reaction score 6 Trophy points 1,298 Activity points 1,410 just add a reference sinwave small to it
Feb 22, 2005 #3 S sergeyr77 Junior Member level 3 Joined Oct 22, 2004 Messages 30 Helped 4 Reputation 6 Reaction score 1 Trophy points 1,288 Activity points 281 You may also add frequency modulated source
Feb 22, 2005 #4 H Hughes Advanced Member level 3 Joined Jun 10, 2003 Messages 715 Helped 113 Reputation 226 Reaction score 26 Trophy points 1,298 Activity points 5,984 for hspice, use .ac and .noise analysis.
Feb 23, 2005 #5 alvays Member level 4 Joined Jul 7, 2004 Messages 76 Helped 7 Reputation 14 Reaction score 2 Trophy points 1,288 Activity points 617 eg. for a inverter you want to calculate the noise at the output(node out). then you should insert an ac voltage source(named vsr) inseries the dc soure(which set your operating point) then .ac dec 10 1hz 10Meghz .noise v(out) vsr 10
eg. for a inverter you want to calculate the noise at the output(node out). then you should insert an ac voltage source(named vsr) inseries the dc soure(which set your operating point) then .ac dec 10 1hz 10Meghz .noise v(out) vsr 10
Feb 25, 2005 #6 M mitgrace Full Member level 6 Joined May 8, 2004 Messages 367 Helped 6 Reputation 12 Reaction score 2 Trophy points 1,298 Activity points 2,526 Does any method using spectre-RF , Thanks Added after 6 minutes: Sorry , Example , check the op's input reference noise . If the OPamp is differential , How do you simulate ? Thanks
Does any method using spectre-RF , Thanks Added after 6 minutes: Sorry , Example , check the op's input reference noise . If the OPamp is differential , How do you simulate ? Thanks
Oct 14, 2005 #7 C cliffj Member level 3 Joined Mar 22, 2004 Messages 55 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,288 Activity points 533 .ac and .noise analysis, and print the noise voltage at the node you want to check.