component
INA2143U
Public Made by Adomby adom
Texas Instruments Differential Amplifiers, SOIC-14. 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
markdownINA2143U
Texas Instruments · Differential Amplifiers · SOIC-14
INA2143U from Texas Instruments, in a SOIC-14. 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 | NC | unconnected | No connection |
| 2 | -In A | input | Inverting input of differential amplifier A |
| 3 | +In A | input | Non-inverting input of differential amplifier A |
| 4 | V- | power_in | Negative power supply (±2.25V to ±18V dual supply, or ground for single supply) |
| 5 | +In B | input | Non-inverting input of differential amplifier B |
| 6 | -In B | input | Inverting input of differential amplifier B |
| 7 | NC | unconnected | No connection |
| 8 | Ref B | input | Reference input for channel B offset adjustment; source impedance < 10Ω recommended |
| 9 | Out B | output | Output of differential amplifier B with 5V/µs slew rate |
| 10 | Sense B | passive | Sense input for feedback network of channel B at junction of internal 10kΩ and 100kΩ resistors |
| 11 | V+ | power_in | Positive power supply (±2.25V to ±18V dual or +4.5V to +36V single supply) |
| 12 | Sense A | passive | Sense input for feedback network of channel A at junction of internal 10kΩ and 100kΩ resistors |
| 13 | Out A | output | Output of differential amplifier A with 5V/µs slew rate |
| 14 | Ref A | input | Reference input for channel A offset adjustment; source impedance < 10Ω recommended |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
INA2143U - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
ina2143u-etched.step/ina2143u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina2143u.step/ina2143u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (22 pp, sha256
8976aa5a4a2130c8, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).