Nov 18, 2007 #1 Q QT_GIRL Junior Member level 3 Joined Mar 23, 2007 Messages 31 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,491 Hi, can somebody please tell me, the precedure of measuring slew rate of a diff op amp in cadence?
Nov 18, 2007 #2 A A.Anand Srinivasan Advanced Member level 5 Joined Oct 15, 2005 Messages 1,792 Helped 257 Reputation 514 Reaction score 39 Trophy points 1,328 Location India Activity points 10,678 use the opamp as a comparator and then use the calculator in analog environment to find the slope of the output to find the slew rate....
use the opamp as a comparator and then use the calculator in analog environment to find the slope of the output to find the slew rate....
Nov 18, 2007 #3 Q QT_GIRL Junior Member level 3 Joined Mar 23, 2007 Messages 31 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,491 hi, im not sure about the input amplitude, does it have to be as large as possible?
Nov 19, 2007 #4 A A.Anand Srinivasan Advanced Member level 5 Joined Oct 15, 2005 Messages 1,792 Helped 257 Reputation 514 Reaction score 39 Trophy points 1,328 Location India Activity points 10,678 ya..... but it is necessary that it should be the largest... it is something like beyond a particular drive the output slope would not increase... simulating with the highest drive is a better idea....
ya..... but it is necessary that it should be the largest... it is something like beyond a particular drive the output slope would not increase... simulating with the highest drive is a better idea....
Nov 20, 2007 #5 C chacha Member level 5 Joined Oct 10, 2006 Messages 84 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,286 Activity points 1,849 give input step and measure the output slope.
Nov 20, 2007 #6 khouly Advanced Member level 5 Joined Oct 20, 2003 Messages 2,350 Helped 461 Reputation 916 Reaction score 102 Trophy points 1,343 Location EGYPT Activity points 13,242 the step should be the highest full swing amplitude , and the output shoud be loaded with the load cap , then u measure the output slope khouly
the step should be the highest full swing amplitude , and the output shoud be loaded with the load cap , then u measure the output slope khouly