component
COS2171SRB
Public Made by Adomby adom
COSINE Operational Amplifier, SOP-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
markdownCOS2171SRB
COSINE · Operational Amplifier · SOP-8
COS2171SRB from COSINE, in a SOP-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 | OUT1 | output | Channel 1 output, whose voltage range extends to within millivolts of each supply rail. |
| 2 | -IN1 | input | Channel 1 inverting input, with a voltage range from -Vs -0.3V to +Vs + 0.3V. |
| 3 | +IN1 | input | Channel 1 non-inverting input, with the same voltage range as -IN (-Vs -0.3V to +Vs + 0.3V). |
| 4 | -Vs | power_in | Negative power supply or ground; if it is not connected to ground, bypass it with a 0.1μF capacitor placed as close to the part as possible. |
| 5 | +IN2 | input | Channel 2 non-inverting input, with the same voltage range as -IN (-Vs -0.3V to +Vs + 0.3V). |
| 6 | -IN2 | input | Channel 2 inverting input, with a voltage range from -Vs -0.3V to +Vs + 0.3V. |
| 7 | OUT2 | output | Channel 2 output, whose voltage range extends to within millivolts of each supply rail. |
| 8 | +Vs | power_in | Positive power supply (4.5V to 40V), with a 0.1μF bypass capacitor placed as close to the part as possible. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | COSINE |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
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 (grade B) | VOS | -5 | 1 | 5 | mV | 4 | |
| Input Offset Voltage Drift | ΔVOS/ΔT | -3 | 0.3 | 3 | μV/°C | -40 to 125°C | 4 |
| Input Bias Current | IB | -20 | 20 | nA | -40°C to 125°C | 4 | |
| Input Offset Current | IOS | -10 | 10 | nA | -40°C to 125°C | 4 | |
| Common-Mode Voltage Range (limits relative to V-S and V+S as printed) | VCM | -0.1 | -2 | V | VS = 40V | 4 | |
| Common-Mode Rejection Ratio | CMRR | 60 | 120 | dB | V-S -0.1 < VCM < V+S -2 | 4 | |
| Open-Loop Voltage Gain | AOL | 70 | 130 | dB | VO=0.2V to 4.8V | 4 | |
| Output Voltage Swing from Rail | 500 | mV | RL=10kΩ, VS = 40V | 4 | |||
| Operating Voltage Range | 4.5 | 40 | V | 4 | |||
| Power Supply Rejection Ratio | PSRR | 75 | 100 | dB | VS = +4.5V to +40V | 4 | |
| Short-Circuit Current, Sourcing | ISR | 40 | mA | Sourcing | 4 | ||
| Short-Circuit Current, Sinking | ISK | -48 | mA | Sinking | 4 | ||
| Quiescent Current per Amplifier | IQ | 700 | μA | 4 | |||
| Input Bias Current (25°C) | IB | 10 | pA | 4 | |||
| Input Offset Current (25°C) | IOS | 4 | pA | 4 | |||
| Gain Bandwidth Product | GBWP | 5 | MHz | G=+1 | 4 | ||
| Slew Rate | SR | 3 | V/μs | G=+1 | 4 | ||
| Voltage Noise Density | en | 18 | nV/√Hz | f=1kHz | 4 | ||
| DC Supply Voltage | 4.5 | 40 | V | Single supply 4.5 to 40 V; dual ±2.25 to ±20 V | 3 | ||
| Operating Ambient Temperature | -40 | 125 | °C | 3 | |||
| Power Supply: +Vs to -Vs | 42 | V | 3 | ||||
| Input Current | -10 | 10 | mA | Input signal beyond supply rails by more than 0.5V, current-limited (footnote 2) | 3 | ||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Junction Temperature | 150 | °C | 3 | ||||
| Operating Temperature Range | -40 | 125 | °C | 3 | |||
| Package Thermal Resistance, junction-to-ambient | RθJA | 155 | °C/W | SOP8 package | 3 |
CAD (KiCad official)
- Symbol:
COS2171SRB - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
cos2171srb-etched.step/cos2171srb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cos2171srb.step/cos2171srb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: COSINE datasheet (10 pp, sha256
60b789e21a6df5f6, retrieved 2026-10-18, 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).