Aug 26, 2015 #1 G gaurav5277 Newbie level 3 Joined Aug 6, 2015 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 26 can anybody help me understand this testbench.
Aug 26, 2015 #2 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 I'd suggest to study the full test bench tutorial: View attachment Cadence_Characterizing_Differential_Amplifiers.pdf
I'd suggest to study the full test bench tutorial: View attachment Cadence_Characterizing_Differential_Amplifiers.pdf
Aug 27, 2015 #3 G gaurav5277 Newbie level 3 Joined Aug 6, 2015 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 26 Hi, Why and how is the second apmlifier ''acOpenDiff'' added? I mean how do i use verilog A to do this? Also please explain why is voltage sources at output of first amplifier added?
Hi, Why and how is the second apmlifier ''acOpenDiff'' added? I mean how do i use verilog A to do this? Also please explain why is voltage sources at output of first amplifier added?
Aug 27, 2015 #4 erikl Super Moderator Staff member Joined Sep 9, 2008 Messages 8,108 Helped 2,695 Reputation 5,370 Reaction score 2,305 Trophy points 1,393 Location Germany Activity points 44,123 gaurav5277 said: Why and how is the second apmlifier ''acOpenDiff'' added? Click to expand... 1. To not load the output of the 1st amplifier additionally 2. To compensate for the DC-amplified offset how is shown on the schematic. gaurav5277 said: Also please explain why is voltage sources at output of first amplifier added? Click to expand... I think this is a replacement for a CMFB circuit, to keep the DC output voltage at the cmref level.
gaurav5277 said: Why and how is the second apmlifier ''acOpenDiff'' added? Click to expand... 1. To not load the output of the 1st amplifier additionally 2. To compensate for the DC-amplified offset how is shown on the schematic. gaurav5277 said: Also please explain why is voltage sources at output of first amplifier added? Click to expand... I think this is a replacement for a CMFB circuit, to keep the DC output voltage at the cmref level.