Audio op-amp with a 22 V/µs edge
It is designed for audio signal chains where slew rate matters—22 V/µs means it can track a full-amplitude 20 kHz sine wave without slewing into distortion, a common failure in slower general-purpose op-amps. The 9 MHz gain-bandwidth product gives enough loop gain to keep distortion low across the audio band, even with closed-loop gains of 10 or more. Supply current is 4 mA per amplifier, which is moderate for a dual audio op-amp—not the lowest quiescent, but a reasonable trade-off for the slew rate and noise performance typical of this family.
The 22 V/µs slew rate is the headline number that sets this part apart from generic dual op-amps like the LM833 or NE5532. In practice, it means the output can swing 10 V peak-to-peak in about 450 ns—enough to reproduce fast transients in guitar pedals, mixing console inserts, or ADC driver stages without rounding off the leading edge. The 1 mV input offset voltage is typical for a bipolar-input audio op-amp; if your design needs sub-millivolt DC accuracy, you would look at a precision part instead. Input bias current is 100 nA, which is fine for low-impedance audio sources but will cause offset drift if the source impedance is high (above 10 kΩ). The 90 mA output current per channel can drive headphones or line-level loads directly, though a dedicated headphone amplifier chip would handle lower impedances better.
The OP275GSZ-REEL operates from a split supply of ±4.5 V to ±22 V, or a single supply from 9 V to 44 V. That covers standard ±15 V audio rails and also single-supply designs like 12 V or 24 V industrial audio.
Package and sourcing note
The 8-SOIC footprint is a common, widely available package.
