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INA240A1QDRQ1

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by Ray

Texas Instruments Current-Sensing Amplifiers, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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INA240A1QDRQ1

Texas Instruments · Current-Sensing Amplifiers · SOIC-8

INA240A1QDRQ1 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 IN- input Inverting analog input. Connect to the load side of the shunt (sense) resistor. Differential input range (VIN+)−(VIN−) is ±80 V; common-mode range −4 V to +80 V.
2 GND power_in Device ground reference.
3 REF2 input Reference input 2. Analog reference used together with REF1 to set the output zero (midpoint) - connect to 0 V or VS depending on unidirectional/bidirectional configuration.
4 NC unconnected No internal connection. Reserved - leave floating or tie to GND.
5 OUT output Analog output voltage. VOUT = Gain × VSENSE + (VREF1+VREF2)/2, with Gain = 20 V/V for INA240A1. Swings from GND+50 mV to VS−200 mV; max capacitive load 1 nF.
6 VS power_in Supply voltage input, 2.7 V to 5.5 V. Typical quiescent current 2.4 mA. Decouple to GND with a local bypass capacitor.
7 REF1 input Reference input 1. Connect to 0 V or VS to bias the output midpoint; used together with REF2 for split-supply-style zero adjustment.
8 IN+ input Non-inverting analog input. Connect to the supply side of the shunt (sense) resistor. Common-mode input range −4 V to +80 V independent of VS.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • INA240A1QDRQ1
  • INA240A1QDRQ1PW
  • INA240A1QDRQ1PWR

CAD (KiCad official)

  • Symbol: INA240A1QDRQ1
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 b96428dff3d5ed1b, retrieved 2026-08-17, tier: manufacturer)
  • 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF