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Op-Amp Slew Rate Calculator — Full-Power Bandwidth & Required SR
Calculate required slew rate from sine-wave frequency and peak voltage, and full-power bandwidth from available slew rate and peak voltage.
Last updated: September 16, 2026
Results
Formula, example and assumptions
SRrequired=2πfVp; fFPBW=SR/(2πVp).
A 20 kHz sine at 10 V peak requires about 1.257 V/µs.
- Sine-wave large-signal slew requirement.
- Small-signal gain bandwidth, settling, output current and load stability are separate constraints.
Frequently asked questions
Is slew rate the same as gain bandwidth?
No. Slew rate is a large-signal rate limit; gain bandwidth describes small-signal closed-loop response.
Should I add margin?
Yes. Choose an amplifier with headroom above the calculated minimum and verify the datasheet at your load.