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COS2171SRB

Public Made by Adom

by adom

COSINE Operational Amplifier, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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COS2171SRB

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cos2171srb.step / cos2171srb.glb are 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, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF