Question

At what condition, the output of op-amp will be free of distortion?

(a) Slew rate > 2πfVm /10^6 V/µs

(b) Slew rate > 2πfVm /10^6 V/µs

(c) Slew rate ≥ 2πfVm /10^6 V/µs

(d) Slew rate = 2πfVm /10^6 V/µs

I have been asked this question in unit test.

Enquiry is from Slew Rate topic in portion Practical Limitations of Op Amp Circuits of Linear Integrated Circuits

Answer 1

Answer: (c) Slew rate >= 2pfVm/10^6 V/us

For distortion-free output, the op-amp slew rate must be at least 2pfVm/10^6 V/microsecond, where f is frequency and Vm is peak voltage. This ensures the op-amp can track rapid signal changes without slew rate distortion.