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OPA2743UA

Public Made by Adom

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

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OPA2743UA

Texas Instruments · Operational Amplifier · SOIC-8

OPA2743UA 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 OUT A output Output of amplifier A, which delivers ±20mA when
2 -In A input Inverting input of amplifier A, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails.
3 +IN A input Non-inverting input of amplifier A, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails.
4 V- power_in Negative power supply; the device operates from 3.5V to 12V single supply (V- at 0V) or ±1.75V to ±6V dual supply, with V+ to V- absolute maximum of 13.2V.
5 +IN B input Non-inverting input of amplifier B, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails.
6 -In B input Inverting input of amplifier B, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails.
7 OUT B output Output of amplifier B, which delivers ±20mA when
8 V+ power_in Positive power supply; the device is specified from 3.5V to 12V single supply, with V+ to V- absolute maximum of 13.2V.

Key specifications

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

CAD (KiCad official)

  • Symbol: OPA2743UA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: opa2743ua-etched.step / opa2743ua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa2743ua.step / opa2743ua.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (18 pp, sha256 44b87cfd1a1b26a1, retrieved 2026-10-08, tier: lcsc)
  • 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