component

COS721SR

Public Made by Adom

by adom

COSINE Operational Amplifier, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentop-amp-cmpcos721sr
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs cos721sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers cos721sr: viewers · Ray
cos721sr-etched.fit.json cos721sr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
cos721sr-etched.glb cos721sr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray
cos721sr-etched.step cos721sr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray
cos721sr.glb Publish 0.1.0 · Ray
cos721sr.kicad_mod Publish 0.1.0 · Ray
cos721sr.kicad_sym Publish 0.1.0 · Ray
cos721sr.lbr Publish 0.1.0 · Ray
cos721sr.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json cos721sr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray
README.md cos721sr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

COS721SR

COSINE · Operational Amplifier · SOIC-8

COS721SR from COSINE, 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 NC unconnected No connection. Leave floating or tie to ground; not electrically connected inside the package.
2 -IN input Inverting input of the amplifier. Allowable voltage range is -Vs - 0.3V to +Vs + 0.3V; input terminals are diode-clamped to the supply rails so external swings beyond 0.5V past the rails must be current-limited to 10mA.
3 +IN input Non-inverting input of the amplifier. Same voltage range as -IN (-Vs - 0.3V to +Vs + 0.3V). Rail-to-rail input capability with common-mode range extending from -0.1V to +Vs+0.1V.
4 -Vs power_in Negative power supply or ground. For single-supply operation tie to GND; for dual-supply operation connect to the negative rail (down to -2.75V). Bypass with a 0.1µF ceramic close to the pin if not directly grounded.
5 NC unconnected No connection. Leave floating or tie to ground; not electrically connected inside the package.
6 OUT output Amplifier output. Rail-to-rail output swings to within ~1mV of each rail with RL=100kΩ, ~8mV with RL=10kΩ, and ~40mV with RL=2kΩ. Short-circuit current is typically 21mA sourcing / 22mA sinking.
7 +Vs power_in Positive power supply, 2.5V to 5.5V single-supply (or up to +2.75V for dual-supply). Bypass with a 0.1µF ceramic capacitor placed as close as possible to the pin; a 2.2µF tantalum may be added for better performance.
8 NC unconnected No connection. Leave floating or tie to ground; not electrically connected inside the package.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • COS721SR
  • COS721SRTR

CAD (KiCad official)

  • Symbol: COS721SR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: cos721sr-etched.step / cos721sr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cos721sr.step / cos721sr.glb are the bare package body.

Provenance

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

  • Datasheet: COSINE datasheet (10 pp, sha256 c3bf767fb360554e, 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