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Contents

README

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MCP6031-E

Microchip Tech · Operational Amplifier · SOIC-8

MCP6031-E from Microchip Tech, 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 NC unconnected No internal connection.
2 VIN- power_in Inverting input of the op amp, a high-impedance CMOS input with low bias currents.
3 VIN+ power_in Noninverting input of the op amp, a high-impedance CMOS input with low bias currents.
4 VSS power_in Negative power supply; connected to ground in single-supply use, and VDD must be 1.8V to 5.5V above it.
5 NC unconnected No internal connection.
6 VOUT output Analog output of the op amp, a low-impedance voltage source.
7 VDD power_in Positive power supply, 1.8V to 5.5V higher than VSS; the datasheet states VDD needs bypass capacitors.
8 NC unconnected No internal connection.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Operational Amplifier/Comparator
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 -150 150 µV VDD = 3.0V, VCM = VDD/3 2
Input Offset Drift with Temperature VOS/TA -3 3 µV/°C TA = -40°C to +125°C, VDD = 3.0V, VCM = VDD/3 2
Power Supply Rejection Ratio PSRR 70 88 dB VCM = VSS 2
Input Bias Current IB 1 100 pA 2
Input Bias Current IB 2000 5000 pA TA = +125°C 2
Input Offset Current IOS -1 1 pA 2
Common-mode Rejection Ratio CMRR 70 95 dB VCM = -0.3V to 2.1V, VDD = 1.8V 2
Common-mode Rejection Ratio CMRR 72 93 dB VCM = -0.3V to 5.8V, VDD = 5.5V 2
Common-mode Rejection Ratio CMRR 70 89 dB VCM = 2.75V to 5.8V, VDD = 5.5V 2
DC Open-Loop Gain (Large Signal) AOL 95 115 dB 0.2V < VOUT < (VDD, 0.2V), RL = 50 k to VL 2
Output Short-Circuit Current ISC -5 5 mA VDD = 1.8V 3
Output Short-Circuit Current ISC -23 23 mA VDD = 5.5V 3
Supply Voltage VDD 1.8 5.5 V 3
Quiescent Current per Amplifier IQ 0.4 0.9 1.35 µA IO = 0, VCM = VDD, VDD = 5.5V 3
Operating Temperature Range TA -40 125 °C Note 1 5
Storage Temperature Range TA -65 150 °C 5
Current at Input Pins -2 2 mA 2
Current at Output and Supply Pins -30 30 mA 2
Maximum Junction Temperature TJ 150 °C 2
Thermal Resistance, 8-Lead SOIC JA 163 °C/W 5

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin 8-Lead Plastic Small Outline (SN) - Narrow, 3.90 mm (.150 In.) Body [SOIC] A A2 29

CAD (KiCad official)

  • Symbol: MCP6031-E
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: mcp6031-e-etched.step / mcp6031-e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp6031-e.step / mcp6031-e.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (44 pp, sha256 90c498628e98ac93, retrieved 2026-10-29, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF