Nov 10, 2013 #1 J jonnybgood Full Member level 4 Joined Dec 28, 2010 Messages 214 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,298 Activity points 3,011 What is meant by residual bias current? I only found about input bias current which is determined by the opamp itself. Residual bias current is only used in that book.. any help? The Art of electronics, Ch7 pg 398 thanks Last edited: Nov 10, 2013
What is meant by residual bias current? I only found about input bias current which is determined by the opamp itself. Residual bias current is only used in that book.. any help? The Art of electronics, Ch7 pg 398 thanks
Nov 10, 2013 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 53,108 Helped 14,792 Reputation 29,871 Reaction score 14,291 Trophy points 1,393 Location Bochum, Germany Activity points 301,063 The text is clearly referring to bias current compensated OPs like OP07 or OP27. Residual means the difference between the input transistor base current and the compensation current.
The text is clearly referring to bias current compensated OPs like OP07 or OP27. Residual means the difference between the input transistor base current and the compensation current.
Nov 10, 2013 #3 LvW Advanced Member level 6 Joined May 7, 2008 Messages 5,915 Helped 1,754 Reputation 3,514 Reaction score 1,366 Trophy points 1,393 Location Germany Activity points 40,555 This remark applies only to opamps with bias current cancellation (like OP07, for example). This principle leads to a remaining bias current (called "residual"). Try to understand the corresponding circuitry and the working principle.
This remark applies only to opamps with bias current cancellation (like OP07, for example). This principle leads to a remaining bias current (called "residual"). Try to understand the corresponding circuitry and the working principle.