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INA141U

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

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INA141U

Texas Instruments · Instrumentation Amplifiers · SOIC-8

INA141U 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 J input Gain-select pin: leaving the jumper open sets G = 10 V/V, shorting pins 1 and 8 sets G = 100 V/V, and a 0.5 Ω series resistance in the jumper reduces gain by 0.1%.
2 V- IN power_in Negative (inverting) signal input of the instrumentation amplifier.
3 V+ IN power_in Positive (non-inverting) signal input of the instrumentation amplifier.
4 V- power_in Negative power supply; the device operates from ±2.25 V to ±18 V dual supplies or 4.5 V to 36 V single supply.
5 Ref input Reference input, which must be driven from a low-impedance source to maintain good common-mode rejection.
6 VO output Amplifier output, which is the output reference for the Ref pin connection and is referenced to the Ref pin voltage.
7 V+ power_in Positive power supply; the device operates from ±2.25 V to ±18 V dual supplies or 4.5 V to 36 V single supply.
8 J input Second gain-select pin paired with pin 1: leaving the jumper open sets G = 10 V/V, and shorting pins 1 and 8 sets G = 100 V/V.

Key specifications

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

CAD (KiCad official)

  • Symbol: INA141U
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ina141u-etched.step / ina141u-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina141u.step / ina141u.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 7d9a0b29cc8d248b, retrieved 2026-10-10, 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