component
INA143UA
Public Made by Adomby adom
Texas Instruments Differential 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
markdownINA143UA
Texas Instruments · Differential Amplifiers · SOIC-8
INA143UA 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 | Ref | input | Output reference terminal; a voltage summed with the output signal (source impedance must be < 10 Ω to maintain CMRR); normally grounded; offset adjustment range ±3 mV with the circuit shown in Figure 3. |
| 2 | -In | input | Inverting differential input; differential input impedance 20 kΩ typ; common-mode range (V-)+1.5 V to (V+)-1.5 V (min, VO = 0 V); source impedance mismatch >5 Ω degrades CMRR to ~86 dB. |
| 3 | +In | input | Non-inverting differential input; differential input impedance 20 kΩ typ; common-mode range (V-)+1.5 V to (V+)-1.5 V (min, VO = 0 V); CMRR 86 dB min (96 dB typ) at VS = ±15 V. |
| 4 | V- | power_in | Negative power supply; dual-supply range -2.25 V to -18 V; quiescent current 0.95 mA typ / 1.2 mA max per amplifier (IO = 0); absolute maximum V+ to V- = 36 V. |
| 5 | Sense | input | Output sense terminal; normally shorted to Output (pin 6) to close the feedback loop; can be driven at a remote load point for remote-sense operation; connects internally to the top of the 100 kΩ feedback resistor. |
| 6 | Output | output | Amplifier output; swing (V+)-1.5 V to (V-)+1 V with RL = 10 kΩ to GND; continuous short-circuit current limit -25/+32 mA; slew rate 5 V/µs typ; stable with capacitive loads up to 1000 pF. |
| 7 | V+ | power_in | Positive power supply; dual-supply range +2.25 V to +18 V, single-supply +4.5 V to +36 V; quiescent current 0.95 mA typ / 1.2 mA max per amplifier (IO = 0); θJA = 150 °C/W (SO-8). |
| 8 | NC | unconnected | No internal connection; leave unconnected per datasheet pin configuration. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
INA143UA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ina143ua-etched.step/ina143ua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina143ua.step/ina143ua.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 2026-09-22, 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).