component

COS2177SR

Public Made by Adom

by adom

COSINE Precision OpAmps, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs cos2177sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
cos2177sr-etched.fit.json cos2177sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
cos2177sr-etched.glb cos2177sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
cos2177sr-etched.step cos2177sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 2d ago
cos2177sr.glb Publish 0.1.0 · Ray 1mo ago
cos2177sr.kicad_mod Publish 0.1.0 · Ray 1mo ago
cos2177sr.kicad_sym Publish 0.1.0 · Ray 1mo ago
cos2177sr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 8 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
cos2177sr.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 11d ago
README.md cos2177sr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 17d ago

COS2177SR

COSINE · Precision OpAmps · SOP-8

COS2177SR from COSINE, 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 Output of amplifier A (channel 1). Output voltage range extends to within millivolts of each supply rail. Output current ±10mA typical, ±28mA short-circuit.
2 -IN1 input Inverting input of amplifier A (channel 1). Voltage range from -Vs to +Vs; input terminals are diode-clamped to the supply rails.
3 +IN1 input Non-inverting input of amplifier A (channel 1). Same voltage range as -IN1 (-Vs to +Vs).
4 -Vs power_in Negative power supply or ground. Total supply (+Vs to -Vs) range ±2.25V to ±18V (36V max). Bypass with 0.1µF ceramic capacitor close to the pin.
5 +IN2 input Non-inverting input of amplifier B (channel 2). Voltage range from -Vs to +Vs.
6 -IN2 input Inverting input of amplifier B (channel 2). Voltage range from -Vs to +Vs; input terminals are diode-clamped to the supply rails.
7 OUT2 output Output of amplifier B (channel 2). Output voltage range extends to within millivolts of each supply rail. Output current ±10mA typical, ±28mA short-circuit.
8 +Vs power_in Positive power supply. Total supply (+Vs to -Vs) range ±2.25V to ±18V (36V max). Bypass with a 0.1µF ceramic capacitor close to the pin; a 2.2µF tantalum can be added for better performance.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • COS2177SR
  • COS2177SR/UA
  • COS2177SRMR/U
  • COS2177SRMR/UA

CAD (KiCad official)

  • Symbol: COS2177SR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: cos2177sr-etched.step / cos2177sr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cos2177sr.step / cos2177sr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cos2177sr.step 122 KB You want the bare part, or you mark your own boards.
cos2177sr-etched.step 2.0 MB You want the part with COS2177SR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 478 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: COSINE datasheet (9 pp, sha256 081dec7544ce6bdd, 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