component
OPA743NA
Public Made by Adomby adom
Texas Instruments Operational Amplifier, SOT-23-5. 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
markdownOPA743NA
Texas Instruments · Operational Amplifier · SOT-23-5
OPA743NA from Texas Instruments, in a SOT-23-5. 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 | output | Amplifier output, rail-to-rail: swings to within 100mV of the rails for RL > 100kΩ and within 325mV for RL = 1kΩ, with ±20mA output current specified for |
| 2 | V- | power_in | Negative power supply; specified from 3.5V to 12V single supply or ±1.75V to ±6V dual supplies, with absolute maximum supply voltage V+ to V- of 13.2V. |
| 3 | +In | input | Noninverting input with common-mode range from (V-) - 0.1V to (V+) + 0.1V; input current must be limited to 10mA or less if the signal swings more than 0.3V beyond the supply rails. |
| 4 | -In | input | Inverting input with common-mode range from (V-) - 0.1V to (V+) + 0.1V; input current must be limited to 10mA or less if the signal swings more than 0.3V beyond the supply rails. |
| 5 | V+ | power_in | Positive power supply; the amplifier draws a typical quiescent current of 1.1mA per amplifier (1.5mA max at 25°C) with specified operation from 3.5V to 12V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
OPA743NA - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
opa743na-etched.step/opa743na-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa743na.step/opa743na.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: manufacturer) - 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).