Why is the output signal I get from an operational comparator amplifier quad?

The input signal that I get is sinusoidal and I can modify it to triangular or cudrada but the output signal no matter what the input is, the output I get with this op amp is square, Why is it square?

6 Answers

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  • Steven
    Lv 7
    3 years ago

    A comparator has only two output states: on or off.

    An op-amp will behave much the same unless you include the appropriate feedback circuit.

    An op-amp with feedback to control the gain is called an instrumentation amp.

    https://en.wikipedia.org/wiki/Comparator

    https://en.wikipedia.org/wiki/Operational_amplifie...

    https://en.wikipedia.org/wiki/Instrumentation_ampl...

  • 3 years ago

    It's a comparator. It very high gain, ind may even be a Shottky device, so it is very difficult or impossible to get anything else but a square wave.

  • 3 years ago

    It is not an amplifier, it is a Comparator.

    There is probably an amplifier with the same pinout which will be nice if you used a socket.

  • 3 years ago

    Probably because you didn't use the amp in an amplification circuit but in a comparator circuit. Check the opamp's data sheet.

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  • Colin
    Lv 7
    3 years ago

    That's what comparators do.

    The output is in one state when the input is above a certain value, and in the other state when the input is below that value.

  • 3 years ago

    BECAUSE YOU USED THE WRONG PARTS ------> COMPARATOR THAT ONLY ABLE TO SWITCH IN ON AND OFF MODE ACCORDING TO THE INPUT VOLTAGE LEVEL WHILE DOING COMPARE. IF YOU JUST WANT IT TO AMPLIFY THE INPUT SIGNAL, USE A COMMON OP-AMP LIKE LM741.

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