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Contents

README

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LM4558

GR · Operational Amplifier · SOP-8

LM4558 from GR, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT1 output Amplifier channel A output. Drives loads down to RL >= 2 kΩ with internal short-circuit protection (continuous tsc).
2 IN1- input Amplifier channel A inverting input. Typical input bias current ~50 nA; input offset current ~10 nA.
3 IN1+ input Amplifier channel A non-inverting input. Common-mode input range extends from VCC- to (VCC+ − 1.5 V).
4 VCC- power_in Negative supply rail (or GND in single-supply operation). Single-supply operating range 3 V to 30 V, dual-supply range ±15 V (absolute max ±18 V).
5 IN2+ input Amplifier channel B non-inverting input. Common-mode input range extends from VCC- to (VCC+ − 1.5 V).
6 IN2- input Amplifier channel B inverting input. Typical input bias current ~50 nA; input offset current ~10 nA.
7 OUT2 output Amplifier channel B output. Drives loads down to RL >= 2 kΩ with internal short-circuit protection (continuous tsc).
8 VCC+ power_in Positive supply rail. Single-supply operating range 3 V to 30 V (absolute max 36 V); dual-supply range ±15 V (absolute max ±18 V). Typical quiescent current 500 µA at VCC+=5 V.

Key specifications

Parameter Value
Manufacturer GR
Package SOP-8
Category Op-amp/Cmp
Pins 8

CAD (KiCad official)

  • Symbol: LM4558
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lm4558-etched.step / lm4558-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4558.step / lm4558.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: GR datasheet (4 pp, sha256 ce5b514b8321783d, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF