comparator problem

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

Reply to
sk
Loading thread data ...

Are you trying to do the analog level comparison and the pulse timing in the same component? (don't)

Tauno Voipio tauno voipio (at) iki fi

Reply to
Tauno Voipio

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.