component
OPA2743UA
Public Made by Adomby adom
Texas Instruments Operational Amplifier, 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
markdownOPA2743UA
Texas Instruments · Operational Amplifier · SOIC-8
OPA2743UA 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 | OUT A | output | Output of amplifier A, which delivers ±20mA when |
| 2 | -In A | input | Inverting input of amplifier A, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails. |
| 3 | +IN A | input | Non-inverting input of amplifier A, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails. |
| 4 | V- | power_in | Negative power supply; the device operates from 3.5V to 12V single supply (V- at 0V) or ±1.75V to ±6V dual supply, with V+ to V- absolute maximum of 13.2V. |
| 5 | +IN B | input | Non-inverting input of amplifier B, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails. |
| 6 | -In B | input | Inverting input of amplifier B, with a common-mode range of (V-) - 0.1V to (V+) + 0.1V and an input current limited to 10mA when the signal swings more than 0.3V beyond the supply rails. |
| 7 | OUT B | output | Output of amplifier B, which delivers ±20mA when |
| 8 | V+ | power_in | Positive power supply; the device is specified from 3.5V to 12V single supply, with V+ to V- absolute maximum of 13.2V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
OPA2743UA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
opa2743ua-etched.step/opa2743ua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa2743ua.step/opa2743ua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (18 pp, sha256
44b87cfd1a1b26a1, retrieved 2026-10-08, tier: lcsc) - 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).