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CBM8539AS8

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Corebai Microelectronics Precision Op Amps, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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CBM8539AS8

Corebai Microelectronics · Precision Op Amps · SOIC-8

CBM8539AS8 from Corebai Microelectronics, in a SOIC-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 OUT A output Channel A amplifier output with rail-to-rail swing, short-circuit current 30mA typical per the electrical table.
2 -IN A input Channel A inverting input, diode-clamped to the supply rails and limited to ±10mA input current.
3 +IN A input Channel A non-inverting input, diode-clamped to the supply rails and limited to ±10mA input current.
4 V- power_in Negative supply (ground in single-supply use); supply range V+ to V- is +2.5V to +5.5V, 7.0V absolute maximum.
5 +IN B input Channel B non-inverting input, diode-clamped to the supply rails and limited to ±10mA input current.
6 -IN B input Channel B inverting input, diode-clamped to the supply rails and limited to ±10mA input current.
7 OUT B output Channel B amplifier output with rail-to-rail swing, short-circuit current 30mA typical per the electrical table.
8 V+ power_in Positive supply, +2.5V to +5.5V operating, 7.0V absolute maximum; place a 0.1µF capacitor across the supply pins.

Key specifications

Parameter Value
Manufacturer Corebai Microelectronics
Package SOIC-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 Vos 1 5 μV VCM = Vs/2 3
Input Offset Voltage Drift dVos/dT 0.005 0.05 μV/℃ 3
Power Supply Rejection Ratio PSRR 110 130 dB VS = +2.5V to +5.5V, VCM = 0 3
Common-Mode Rejection Ratio CMRR 110 130 dB (V-), 0.1V < VCM < (V+)+ 0.1V 4
Open-Loop Voltage Gain AOL 110 130 dB RL=10KΩ, VO=0.3V to 4.7V, -40°C~125°C 4
Operating Voltage Range 2.5 5.5 V 4
Quiescent Current per Amplifier IQ 180 260 uA 4
Low-Level Shutdown Input Voltage VL (shutdown) 0 0.8 V shutdown 4
Input Terminals Voltage -0.5 V Printed maximum: (V+) + 0.5V 2
Input Terminals Current -10 10 mA 2
Storage Temperature -65 150 °C 2
Junction Temperature 150 °C 2
Operating Temperature -40 125 °C 2
Package Thermal Resistance (SOIC-8) 150 °C/W @ TA = +25°C; printed for MSOP-8, SOIC-8 2

CAD (KiCad official)

  • Symbol: CBM8539AS8
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: cbm8539as8-etched.step / cbm8539as8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cbm8539as8.step / cbm8539as8.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Corebai Microelectronics datasheet (12 pp, sha256 89eacd719e2a5d33, 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