component
INA240A3D
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
markdownINA240A3D
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina240a3d.step/ina240a3d.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).