Kevin Weddle Posted February 23, 2014 Report Share Posted February 23, 2014 Oh, wrong project. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted February 23, 2014 Report Share Posted February 23, 2014 What's the point of this thread?I was tempted to delete it. Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted February 28, 2014 Author Report Share Posted February 28, 2014 An opamp doesn't source any current. Quote Link to comment Share on other sites More sharing options...
audioguru Posted February 28, 2014 Report Share Posted February 28, 2014 An opamp doesn't source any current.You are wrong, Kevin.ALL opamps have a NPN emitter-follower at the output to source current and an PNP emitter-follower transistor at the output to sink current.Maybe you are thinking about the output of a comparator that does not have emitter-follower outputs so it is simply an NPN open collector that sinks current but needs a pullup resistor to source current. Then the outputs of many comparators can be connected together using a single pullup resistor which makes them an OR gate.I corrected the above because I originally got it wrong. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.