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Contents

README

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INA219AIDR

Texas Instruments · Current Sense Amplifiers · SOIC-8

INA219AIDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A1 input Address pin; determines I2C slave address (one of 16 possible addresses when connected to GND, VS, SDA, or SCL per Table 1).
2 A0 input Address pin; determines I2C slave address (one of 16 possible addresses when connected to GND, VS, SDA, or SCL per Table 1).
3 SDA bidirectional Serial bus data line with open-drain output for I2C/SMBus interface; supports fast mode (0.4 MHz) and high-speed mode (2.56 MHz).
4 SCL input Serial bus clock line for I2C/SMBus interface; supports fast mode (0.4 MHz) and high-speed mode (2.56 MHz).
5 VS power_in Analog power supply voltage, 3 to 5.5 V; bypass with 0.1 μF ceramic capacitor placed as close as possible to pin.
6 GND power_in Analog ground; connect to system ground plane.
7 IN- input Negative differential shunt voltage input (-0.3 to 26 V); connect to negative side of current-sense shunt resistor; bus voltage measured from this pin to ground.
8 IN+ input Positive differential shunt voltage input (-0.3 to 26 V); connect to positive side of current-sense shunt resistor; differential voltage range -26 to +26 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: INA219AIDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ina219aidr-etched.step / ina219aidr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina219aidr.step / ina219aidr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 58004eda854d0747, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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