Hey I'm actually designing a comparator circuit
|--------feedback resistor------| | | | |---------------------| | RC CIRCUIT ----|------|+ | | | COMPARATOR CIRCUIT | | INPUT----------|- |--|---------OUT |---------------------| The task is to design this cirucit in such a way that when an input pulse (0.5,-2.5) with a pulse width of 8micro seconds is given it should produce me an output which remains high for atleast like
64micro seconds..i tried using R=2248.5k and C=8500pF and the feedback resistor i used was 90k..i was able to get an o/p which remains high for 64microseconds but when looked at it carefuly i was able to figure out that the outout remained high just beacuse of the large difference between the resistors(the storage capacitance is not much observed in the o/p graph)...it should basically work like a monostable multivibrator (without using ic 555 timer though)...it would be of great help to me if u could give me some suggestions as how could i do this..
thanks sk