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INA240A3D

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

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INA240A3D

Texas Instruments · Current Sense Amplifiers · SOIC-8

INA240A3D 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 IN- input Analog input connected to the load side of the shunt resistor; the differential input range is limited to -80 V to 80 V, with common-mode range of -4 V to 80 V.
2 GND power_in Analog ground; the device runs from a single supply (VS, 2.7 V to 5.5 V) referenced to this pin.
3 REF2 input Reference voltage 2, to be connected between 0 V and VS; it must not be driven below GND or above VS, and REF1 and REF2 may be tied together.
4 NC unconnected Not internally connected; reserved, and may be grounded or left floating.
5 OUT output Analog output voltage, swinging between GND and VS; it is limited to within GND - 0.3 V and VS + 0.3 V as an absolute maximum and can drive up to 1 nF of capacitive load without sustained oscillation.
6 VS power_in Power supply, 2.7 V to 5.5 V (absolute maximum 6 V), with a 0.1 µF bypass capacitor recommended close to the pin.
7 REF1 input Reference voltage 1, to be connected between 0 V and VS; it must not be driven below GND or above VS, and REF1 and REF2 may be tied together.
8 IN+ input Analog input connected to the supply side of the shunt resistor; the common-mode range is -4 V to 80 V, independent of VS.

Key specifications

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

CAD (KiCad official)

  • Symbol: INA240A3D
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ina240a3d-etched.step / ina240a3d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina240a3d.step / ina240a3d.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 b75bb6d308520432, retrieved 2026-10-08, 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