The RC4558PSR is a dual-channel general-purpose operational amplifier from Texas Instruments, packing two independent op-amps into an 8-SOIC surface-mount package. It's the classic 4558 architecture — 3 MHz gain bandwidth and 1.7 V/µs slew rate — suited for audio preamplifiers, active filters, signal conditioning, and control loops where you don't need rail-to-rail output or precision below 500 µV offset.
Supply rails and temperature — where it lives on the board
Supply span runs from 10 V to 30 V, which means you can run it on ±5 V to ±15 V split supplies or a single 12 V or 24 V rail. Each channel draws 2.5 mA supply current, so the dual package pulls 5 mA total quiescent — reasonable for a general-purpose part but not a low-power choice for battery gear.
