component
COSINA333MRB
Public Made by Adomby adom
COSINE Instrumentation Amplifiers, MSOP-8. Pinout cross-checked by two models against 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
markdownCOSINA333MRB
COSINE · Instrumentation Amplifiers · MSOP-8
COSINA333MRB from COSINE, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RG | passive | Gain-setting pin; for gains greater than 1, a single external gain resistor RG is connected between pin 1 and pin 8, with G = 1 + 100 kΩ/RG. |
| 2 | VIN- | power_in | Negative differential input of the instrumentation amplifier, with input common-mode range of -Vs to +Vs. |
| 3 | VIN+ | power_in | Positive differential input of the instrumentation amplifier, with input common-mode range of -Vs to +Vs. |
| 4 | -VS | power_in | Negative supply; operates from a single 1.8 V to 5.5 V supply or dual ±0.9 V to ±2.75 V supplies, and should be bypassed to ground with a 0.1 μF ceramic capacitor. |
| 5 | REF | input | Reference input that must be driven by a low-impedance source or connected to ground, since a series resistance of 8 Ω causes an 80 dB CMRR degradation. |
| 6 | VOUT | output | Amplifier output, referred to the REF pin, with swing within 2 mV of each rail at RL = 100 kΩ. |
| 7 | +VS | power_in | Positive supply; operates from 1.8 V to 5.5 V single supply or ±0.9 V to ±2.75 V dual supply, and should be bypassed close to the pin with a 0.1 μF ceramic capacitor. |
| 8 | RG | passive | Gain-setting pin; the other terminal of the external gain resistor RG (connected between pin 1 and pin 8) for gains greater than 1. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | MSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
COSINA333MRB - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
cosina333mrb-etched.step/cosina333mrb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cosina333mrb.step/cosina333mrb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: COSINE datasheet (8 pp, sha256
bdfc6b55ea745fa7, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).