Mar 16, 2005 #1 C crystalc Newbie level 5 Joined Apr 21, 2004 Messages 10 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 67 who can give me some suggestions about how to design a simple rail to rail comparator with hysteresis? thank you.
who can give me some suggestions about how to design a simple rail to rail comparator with hysteresis? thank you.
Mar 16, 2005 #2 A ambreesh Full Member level 5 Joined Feb 21, 2005 Messages 319 Helped 21 Reputation 42 Reaction score 4 Trophy points 1,298 Activity points 4,347 Go through Allen Hollberg chapter on comparators. It would be great help to you
Mar 16, 2005 #3 Y yeewong_su Advanced Member level 4 Joined Oct 12, 2004 Messages 119 Helped 5 Reputation 10 Reaction score 3 Trophy points 1,298 Activity points 803 And you can ref some rail to rail opamp
Mar 17, 2005 #4 D dumbfrog Full Member level 3 Joined Jul 17, 2004 Messages 182 Helped 9 Reputation 18 Reaction score 5 Trophy points 1,298 Activity points 1,360 razavi's and allan's books have lots of references
Mar 18, 2005 #5 A analogic Junior Member level 1 Joined Nov 24, 2004 Messages 17 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 164 try this circuit: use conventional inverting amplifier structure (two resistor and one opamp), change vinp and vinn, so that it is a positive feedback. now it is a comparator with hysterisis. the two threshold voltages can be controlled by changing the resistor ratio
try this circuit: use conventional inverting amplifier structure (two resistor and one opamp), change vinp and vinn, so that it is a positive feedback. now it is a comparator with hysterisis. the two threshold voltages can be controlled by changing the resistor ratio