component

INA143U

Public Made by Adom

by adom

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

componentamplifiers-comparatorsina143ufactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 21h ago
viewers ina143u: viewers · Ray 21h ago
ina143u-etched.glb ina143u: factory component page (tier=lcsc) · Ray 21h ago
ina143u-etched.step ina143u: factory component page (tier=lcsc) · Ray 21h ago
ina143u-hero.glb ina143u: hero GLB from the etched model (keeps the MPN mark) · Ray 21h ago
ina143u-hero.overlay.json Publish 0.1.0 · Ray 21h ago
ina143u.glb Publish 0.1.0 · Ray 21h ago
ina143u.kicad_mod Publish 0.1.0 · Ray 21h ago
ina143u.kicad_sym Publish 0.1.0 · Ray 21h ago
ina143u.lbr Publish 0.1.0 · Ray 21h ago
ina143u.step Publish 0.1.0 · Ray 21h ago
package.json Publish 0.1.0 · Ray 21h ago
page.json Set visibility: public · Ray 21h ago
README.md Initial commit: component/ina143u · Ray 21h ago

INA143U

Texas Instruments · Differential Amplifiers · SOIC-8

INA143U 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 Ref input Output reference terminal, normally grounded; a voltage applied here is summed with the output to null offset, and its source impedance should be less than 10Ω to maintain good common-mode rejection.
2 -In input Inverting differential input; source impedances on the two inputs must be nearly equal, since a 5Ω mismatch degrades typical CMR to about 86 dB, and input resistors above 100Ω degrade CMR even if matched.
3 +In input Non-inverting differential input; source impedances must be nearly equal to the -In source for good common-mode rejection, and the common-mode input range extends beyond the supply rails.
4 V- power_in Negative supply: operates from dual supplies of ±2.25V to ±18V or single supply of +4.5V to +36V (absolute maximum supply V+ to V- is 36V).
5 Sense input Sense terminal of the internal difference amplifier (shown in the block diagram); the text does not define its function or limits.
6 Output output Amplifier output; with RL = 10kΩ to ground it swings to (V+) -1.5V positive and (V-) +1V negative, with continuous short-circuit current limit of -25/+32 mA and stable operation up to 1000 pF capacitive load.
7 V+ power_in Positive supply: operates from ±2.25V to ±18V dual or +4.5V to +36V single supply.
8 NC unconnected No connection; leave unconnected.

Key specifications

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

CAD (KiCad official)

  • Symbol: INA143U
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ina143u-etched.step / ina143u-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina143u.step / ina143u.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 8976aa5a4a2130c8, 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