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I was aiming to make a square wave generator which gives 16 kHz -7V,+7V square wave signal. I have used this design however i could not reach a clear square wave. I have shown the LTSpice simulation result and circuit below. If you have any idea, i will be happy. Thank you.

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layout789
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    eeek 741.. see https://electronics.stackexchange.com/questions/304521/reasons-not-to-use-a-741-op-amp – Trevor_G Jul 27 '17 at 20:24
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    A "clear square wave" is not physical. There is always some rise and fall times. – Eugene Sh. Jul 27 '17 at 20:25
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    What is the slewrate of a 741? – Joren Vaes Jul 27 '17 at 20:32
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    10v slew in 20uS, that sounds about right for a 741 – Neil_UK Jul 27 '17 at 20:38
  • What I find funny about this is that *if* one wanted to calculate the required slew rate for an opamp, given the desire to generate a sine wave output and a frequency of \$16\:\textrm{kHz}\$ then one would actually *calculate* the need for at least \$\frac{0.5\:\textrm{V}}{\mu\textrm{s}}\$. Which, mysteriously and entirely coincidentally, happens to be the rate of a 741. Hmm. – jonk Jul 27 '17 at 21:01
  • Use a real opamp symbols for opamps in schematics. There is a reason they exist. – Olin Lathrop Jul 27 '17 at 21:11
  • A CD4106 run as an RC relaxation oscillator will make your life easier. – sstobbe Jul 27 '17 at 22:59

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