Edge Detector?
I just came back from a job interview and they had me evaluate an op amp circuit. I'm pretty sure I got it right but what do you guys think? On the input was a 2 Vp-p square wave @ 1kHz, the output a triangle wave, 6Vp-p @ 1khz. The negative slope of the output coincided with the positive going edge of the input. I described the circuit as an inverting edge detector with a gain of 3. Sorry, I failed to concentrate on the input connections: all I remember is that there were 2 other resistors. It was a sort of a 'beat the clock' situation and there were other tasks to perform. They didn't have values on the schematic and they used 1% resistors (It takes me a while to decipher those).
I just came back from a job interview and they had me evaluate an op amp circuit. I'm pretty sure I got it right but what do you guys think? On the input was a 2 Vp-p square wave @ 1kHz, the output a triangle wave, 6Vp-p @ 1khz. The negative slope of the output coincided with the positive going edge of the input. I described the circuit as an inverting edge detector with a gain of 3. Sorry, I failed to concentrate on the input connections: all I remember is that there were 2 other resistors. It was a sort of a 'beat the clock' situation and there were other tasks to perform. They didn't have values on the schematic and they used 1% resistors (It takes me a while to decipher those).
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