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OPA637AU

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

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OPA637AU

Texas Instruments · Precision Op Amps · SOIC-8

OPA637AU from Texas Instruments, 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; the pin can be left floating.
2 -IN input Inverting input; the absolute maximum common-mode input voltage is (V-) - 0.5 V to (V+) + 0.5 V and the input pin current is limited to ±10 mA.
3 +IN input Noninverting input; the absolute maximum common-mode input voltage is (V-) - 0.5 V to (V+) + 0.5 V and the input pin current is limited to ±10 mA.
4 V- power_in Negative (lowest) power supply; the total supply voltage VS = (V+) - (V-) is limited to 36 V single supply or ±18 V dual supply.
5 NC unconnected No internal connection; the pin can be left floating.
6 OUT output Amplifier output.
7 V+ power_in Positive (highest) power supply; the total supply voltage VS = (V+) - (V-) is limited to 36 V single supply or ±18 V dual supply.
8 NC unconnected No internal connection; the pin can be left floating.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Amplifiers/Comparators
Pins 8

CAD (KiCad official)

  • Symbol: OPA637AU
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: opa637au-etched.step / opa637au-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa637au.step / opa637au.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (48 pp, sha256 405d4cf76b314a30, retrieved 2026-10-11, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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