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OPA4743UA

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Texas Instruments Operational Amplifier, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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OPA4743UA

Texas Instruments · Operational Amplifier · SOIC-14

OPA4743UA from Texas Instruments, in a SOIC-14. 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 Amplifier A output, rail-to-rail, swinging to within 100mV of the rails with a 100kΩ load and driving up to 1000pF of capacitive load.
2 -In A input Amplifier A inverting input, diode-clamped to the supply rails, so signals beyond 0.3V outside the rails should be limited to 10mA.
3 +In A input Amplifier A non-inverting input with common-mode range extending 100mV beyond the supply rails, diode-clamped with a 10mA limit.
4 V+ power_in Positive supply, 3.5V to 12V single supply (±1.75V to ±6V dual), 13.2V absolute maximum, bypassed with 1000pF ceramic in parallel with 1µF tantalum.
5 +In B input Amplifier B non-inverting input with common-mode range extending 100mV beyond the supply rails, diode-clamped with a 10mA limit.
6 -In B input Amplifier B inverting input, diode-clamped to the supply rails, so signals beyond 0.3V outside the rails should be limited to 10mA.
7 Out B output Amplifier B output, rail-to-rail, swinging to within 100mV of the rails with a 100kΩ load and driving up to 1000pF of capacitive load.
8 Out C output Amplifier C output, rail-to-rail, swinging to within 100mV of the rails with a 100kΩ load and driving up to 1000pF of capacitive load.
9 -In C input Amplifier C inverting input, diode-clamped to the supply rails, so signals beyond 0.3V outside the rails should be limited to 10mA.
10 +In C input Amplifier C non-inverting input with common-mode range extending 100mV beyond the supply rails, diode-clamped with a 10mA limit.
11 V- power_in Negative supply or ground for single-supply operation, with total V+ to V- limited to 13.2V absolute maximum.
12 +In D input Amplifier D non-inverting input with common-mode range extending 100mV beyond the supply rails, diode-clamped with a 10mA limit.
13 -In D input Amplifier D inverting input, diode-clamped to the supply rails, so signals beyond 0.3V outside the rails should be limited to 10mA.
14 Out D output Amplifier D output, rail-to-rail, swinging to within 100mV of the rails with a 100kΩ load and driving up to 1000pF of capacitive load.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Amplifiers/Comparators
Pins 14

CAD (KiCad official)

  • Symbol: OPA4743UA
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: opa4743ua-etched.step / opa4743ua-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa4743ua.step / opa4743ua.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 2026-10-12, 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