component
INA240A3DR
Public Made by Adomby adom
Texas Instruments Current Sense Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownINA240A3DR
Texas Instruments · Current Sense Amplifiers · SOIC-8
INA240A3DR 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 | Negative differential analog input; connect to load side of shunt resistor; common-mode voltage range -4 V to 80 V. |
| 2 | GND | power_in | Analog ground; reference point for power supply and output circuitry. |
| 3 | REF2 | input | Reference voltage input 2; connect to 0 V to VS to adjust output midpoint voltage. |
| 4 | NC | unconnected | No internal connection; reserved; connect to ground or leave unconnected. |
| 5 | OUT | output | Analog output voltage with 100 V/V gain; output swing GND + 1 mV to VS - 200 mV at RL = 10 kΩ. |
| 6 | VS | power_in | Power supply input; operating voltage range 2.7 V to 5.5 V; quiescent current maximum 2.4 mA. |
| 7 | REF1 | input | Reference voltage input 1; connect to 0 V to VS to adjust output midpoint voltage. |
| 8 | IN+ | input | Positive differential analog input; connect to supply side of shunt resistor; common-mode voltage range -4 V to 80 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
INA240A3DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ina240a3dr-etched.step/ina240a3dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina240a3dr.step/ina240a3dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
c9d26e72ebdb52a1, retrieved 2026-09-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).