Feb 13, 2014 #1 M mohamed mahmoud Junior Member level 1 Joined Jan 31, 2014 Messages 16 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 118 how can i measure delay of simple cmos buffer (2 cascaded min sized inverters)? measure delay of each inverter and sum them ??
how can i measure delay of simple cmos buffer (2 cascaded min sized inverters)? measure delay of each inverter and sum them ??
Feb 13, 2014 #2 J jirika Member level 2 Joined Apr 19, 2011 Messages 43 Helped 14 Reputation 26 Reaction score 13 Trophy points 1,288 Location Prague Activity points 1,481 The delay is output load dependant. So when you'll know output cap then it's the simple question of charging RC couple.
The delay is output load dependant. So when you'll know output cap then it's the simple question of charging RC couple.
Feb 13, 2014 #3 M mohamed mahmoud Junior Member level 1 Joined Jan 31, 2014 Messages 16 Helped 0 Reputation 0 Reaction score 0 Trophy points 1 Activity points 118 i need to know the intrinsic delay of buffer (which is not dependent on load)
Feb 13, 2014 #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 Measure the delay for 2 or more known load capacitances. Plot delay vs. capacitance and extrapolate for Cload=0 .
Measure the delay for 2 or more known load capacitances. Plot delay vs. capacitance and extrapolate for Cload=0 .
Feb 18, 2014 #5 K kenambo Full Member level 6 Joined Feb 26, 2012 Messages 393 Helped 52 Reputation 104 Reaction score 48 Trophy points 1,308 Location India Activity points 3,859 Hi, You can measure the delay between Buffer Input and Buffer output.. And actually it is a sum of inverter delays.. Thanks
Hi, You can measure the delay between Buffer Input and Buffer output.. And actually it is a sum of inverter delays.. Thanks