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Contents

README

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LM2904M

HGSEMI · Operational Amplifier · SOP-8

LM2904M from HGSEMI, 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 1OUT output Op-amp 1 output. Push-pull output with short-circuit protection; typical short-circuit current ±24 mA. Output swing on a 15 V single supply: VOH ~13.6 V (Iout=-50µA), VOL ~0.1 V (Iout=50µA).
2 1IN- input Op-amp 1 inverting input. Common-mode input range VEE to VCC-1.5V; typical input bias current 50 nA and offset current 10 nA at VO=1.4 V.
3 1IN+ input Op-amp 1 non-inverting input. Common-mode input range VEE to VCC-1.5V; ±36 V max differential input voltage between IN+ and IN-.
4 VEE power_in Negative supply / ground. Tie to GND for single-supply operation (3V-36V VCC) or to a negative rail for split-supply operation up to ±18 V.
5 2IN+ input Op-amp 2 non-inverting input. Same electrical characteristics as 1IN+: common-mode range VEE to VCC-1.5V, ±36 V differential limit.
6 2IN- input Op-amp 2 inverting input. Typical input bias current 50 nA, offset current 10 nA at VO=1.4 V.
7 2OUT output Op-amp 2 output. Push-pull output with short-circuit protection; typical short-circuit current ±24 mA. Same output swing characteristics as 1OUT.
8 VCC power_in Positive supply. Single-supply range 3V-36V (VEE=GND) or ±18 V split supply. Typical quiescent current 0.5 mA @ VCC=5V, 0.8 mA @ VCC=36V (no load).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • LM2904MM/TR
  • LM2904MN
  • LM2904MMM/TR
  • LM2904MDQ2/TR
  • LM2904MDQ3/TR

CAD (KiCad official)

  • Symbol: LM2904M
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (10 pp, sha256 25a7f8f07393d110, 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