component

OPA2277UAM

Public Unreviewed

by Ray

HGSEMI Operational Amplifier, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmpopa2277uam
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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

markdown

OPA2277UAM

HGSEMI · Operational Amplifier · SOIC-8

OPA2277UAM from HGSEMI, in a SOIC-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 Out A output Output of channel A (op-amp A).
2 -In A input Inverting input of channel A.
3 +In A input Noninverting input of channel A.
4 V- power_in Negative (lowest) power supply. Operating supply range: ±2 V to ±16 V (total 4 V to 36 V across V+ and V-).
5 +In B input Noninverting input of channel B.
6 -In B input Inverting input of channel B.
7 Out B output Output of channel B (op-amp B).
8 V+ power_in Positive (highest) power supply. Operating supply range: ±2 V to ±16 V (total 4 V to 36 V across V+ and V-).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • OPA2277UAM/TR
  • OPA2277UAMUM/TR
  • OPA2277UAMM/TR
  • OPA2277UAMUN
  • OPA2277UAMUAN
  • OPA2277UAMN
  • OPA2277UAMUDQ2/TR
  • OPA2277UAMUADQ2/TR
  • OPA2277UAMDQ2/TR

CAD (KiCad official)

  • Symbol: OPA2277UAM
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
opa2277uam.step 122 KB You want the bare part, or you mark your own boards.
opa2277uam-etched.step 1.8 MB You want the part with OPA2277UAM already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 455 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: HGSEMI datasheet (23 pp, sha256 7cff3ab2ae68c1e8, retrieved 2026-08-17, 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