amdkicksass
Member
I am building a circuit that incorporates a lm311 as a voltage comparator. I need to replace the LM311 IC with a circuit that is completely discrete. By discrete i mean, resistors, fets, transistors, diodes...etc.
I have seen a few circuits on the web, but they incorporate over 20 transistors, which might make things a bit difficult. IT doesn't have to be perfect but work decently in my successive approximation a/d circuit and i think i am making thing more difficult than they should be.
I am guessing a circuit thats based on a basic differential amp would do the trick but i am not sure.
Thanks
Pete
I have seen a few circuits on the web, but they incorporate over 20 transistors, which might make things a bit difficult. IT doesn't have to be perfect but work decently in my successive approximation a/d circuit and i think i am making thing more difficult than they should be.
I am guessing a circuit thats based on a basic differential amp would do the trick but i am not sure.
Thanks
Pete