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COS8551TRB
Public Made by Adomby adom
COSINE Precision Op Amps, SOT-23-5. 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
markdownCOS8551TRB
COSINE · Precision Op Amps · SOT-23-5
COS8551TRB from COSINE, in a SOT-23-5. 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 | OUT | output | Amplifier output, whose voltage range extends to within millivolts of each supply rail (within 5mV at RL=100kΩ). |
| 2 | -Vs | power_in | Negative power supply or ground; if not connected to ground, bypass it with a 0.1µF capacitor placed as close to the part as possible. |
| 3 | +IN | input | Non-inverting input of the amplifier, with a voltage range of -Vs -0.3V to +Vs +0.3V. |
| 4 | -IN | input | Inverting input of the amplifier, with a voltage range of -Vs -0.3V to +Vs +0.3V. |
| 5 | +Vs | power_in | Positive power supply (1.8V to 5.5V), with a 0.1µF bypass capacitor placed as close to the part as possible. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 4 | 20 | μV | 4 | ||
| Input Offset Voltage Drift | ΔVOS/ΔT | 0.005 | 0.05 | μV/°C | -40°C to 125°C | 4 | |
| Input Bias Current | IB | 100 | 500 | pA | 4 | ||
| Input Offset Current | IOS | 100 | 500 | pA | 4 | ||
| Common-Mode Voltage Range | VCM | -0.1 | 5.6 | V | VS = 5.5V | 4 | |
| Common-Mode Rejection Ratio | CMRR | 120 | dB | VCM =0.1V to 4.9V | 4 | ||
| Open-Loop Voltage Gain | AOL | 145 | dB | VO=0.2V to 4.8V | 4 | ||
| Output Voltage Swing from Rail | 5 | mV | RL=100kΩ | 4 | |||
| Output Voltage Swing from Rail | 15 | mV | RL=10kΩ | 4 | |||
| Short-Circuit Current Sourcing | ISR | 7 | mA | Sourcing | 4 | ||
| Short-Circuit Current Sinking | ISK | -7 | mA | Sinking | 4 | ||
| Operating Voltage Range | 1.8 | 5.5 | V | 4 | |||
| Power Supply Rejection Ratio | PSRR | 80 | 100 | dB | VS = 1.8V to 5.5V | 4 | |
| Quiescent Current / Amplifier | IQ | 55 | μA | VS = 3.0V | 4 | ||
| Gain Bandwidth Product | GBWP | 1.5 | MHz | G=+1 | 4 | ||
| Slew Rate | SR | 0.9 | V/μs | G = +1 , 2V Output Step | 4 | ||
| Voltage Noise Density | en | 50 | nV/√Hz | f=1kHz | 5 | ||
| Power Supply (+Vs to -Vs) | 6 | V | 3 | ||||
| Input Current | 10 | mA | 3 | ||||
| ESD Susceptibility | 2000 | V | HBM | 3 | |||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Junction Temperature | 150 | °C | 3 | ||||
| Operating Temperature Range | -40 | 125 | °C | 3 | |||
| DC Supply Voltage | 1.8 | 5.5 | V | 3 | |||
| Operating ambient temperature | -40 | 85 | °C | 3 | |||
| Package Thermal Resistance, junction-to-ambient (SOT23-5) | RθJA | 190 | °C/W | SOT23-5, junction-to-ambient | 3 |
CAD (KiCad official)
- Symbol:
COS8551TRB - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
cos8551trb-etched.step/cos8551trb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cos8551trb.step/cos8551trb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: COSINE datasheet (12 pp, sha256
845c61f20f164396, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).