Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

LM4558M

HGSEMI · Differential Amplifiers · SOP-8

LM4558M from HGSEMI, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUT1 output Output of amplifier 1; output voltage swing ±12 V typ / ±13.5 V max into RL ≥ 2 kΩ, output current ±50 mA absolute maximum.
2 IN1- input Inverting input of amplifier 1; input common-mode range ±12 V typ / ±13.5 V max, differential input voltage ±30 V absolute maximum.
3 IN1+ input Non-inverting input of amplifier 1; input common-mode range ±12 V typ / ±13.5 V max, differential input voltage ±30 V absolute maximum.
4 VCC- power_in Negative power supply; operating range −2.25 V to −16 V (i.e. ±2.25 V to ±16 V split supply), power dissipation 300 mW maximum for SOP-8.
5 IN2+ input Non-inverting input of amplifier 2; input common-mode range ±12 V typ / ±13.5 V max, differential input voltage ±30 V absolute maximum.
6 IN2- input Inverting input of amplifier 2; input common-mode range ±12 V typ / ±13.5 V max, differential input voltage ±30 V absolute maximum.
7 OUT2 output Output of amplifier 2; output voltage swing ±12 V typ / ±13.5 V max into RL ≥ 2 kΩ, output current ±50 mA absolute maximum.
8 VCC+ power_in Positive power supply; operating range +2.25 V to +16 V (i.e. ±2.25 V to ±16 V split supply), total quiescent current 6 mA typ / 9 mA max.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-8
Category Amplifiers/Comparators
Pins 8

CAD (KiCad official)

  • Symbol: LM4558M
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: lm4558m-etched.step / lm4558m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4558m.step / lm4558m.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (9 pp, sha256 002d88a3a9a6a9fe, retrieved 2026-09-29, tier: lcsc)
  • 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