component
COS721SR
Public Made by Adomby adom
COSINE Operational Amplifier, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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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README
markdownCOS721SR
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.
COS721SRCOS721SRTR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cos721sr.step/cos721sr.glbare 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).