component
INA141U
Public Made by Adomby adom
Texas Instruments Instrumentation 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
markdownINA141U
Texas Instruments · Instrumentation Amplifiers · SOIC-8
INA141U 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 | J | input | Gain-select pin: leaving the jumper open sets G = 10 V/V, shorting pins 1 and 8 sets G = 100 V/V, and a 0.5 Ω series resistance in the jumper reduces gain by 0.1%. |
| 2 | V- IN | power_in | Negative (inverting) signal input of the instrumentation amplifier. |
| 3 | V+ IN | power_in | Positive (non-inverting) signal input of the instrumentation amplifier. |
| 4 | V- | power_in | Negative power supply; the device operates from ±2.25 V to ±18 V dual supplies or 4.5 V to 36 V single supply. |
| 5 | Ref | input | Reference input, which must be driven from a low-impedance source to maintain good common-mode rejection. |
| 6 | VO | output | Amplifier output, which is the output reference for the Ref pin connection and is referenced to the Ref pin voltage. |
| 7 | V+ | power_in | Positive power supply; the device operates from ±2.25 V to ±18 V dual supplies or 4.5 V to 36 V single supply. |
| 8 | J | input | Second gain-select pin paired with pin 1: leaving the jumper open sets G = 10 V/V, and shorting pins 1 and 8 sets G = 100 V/V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
INA141U - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ina141u-etched.step/ina141u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina141u.step/ina141u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
7d9a0b29cc8d248b, retrieved 2026-10-10, 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).