component
OPA349UA
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
markdownOPA349UA
Texas Instruments · Operational Amplifier · SOIC-8
OPA349UA 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 | NC | unconnected | No internal connection on this pin (NC indicates no internal connection per the datasheet). |
| 2 | -In | input | Inverting input; the input common-mode voltage range extends 200mV beyond the supply rails and input diodes clamp to the rails, so signals more than 0.5V beyond the rails should be limited to 10mA. |
| 3 | +In | input | Non-inverting input; the input common-mode voltage range extends 200mV beyond the supply rails, with input bias current of 10pA max. |
| 4 | V- | power_in | Negative power supply (single-supply ground reference); the device is specified from 1.8V to 5.5V between V+ and V-. |
| 5 | NC | unconnected | No internal connection on this pin (NC indicates no internal connection per the datasheet). |
| 6 | Out | output | Output swings to within 350mV of the rails with RL = 10kΩ and supplies or sinks up to ±8mA output current. |
| 7 | V+ | power_in | Positive power supply; specified from +1.8V to +5.5V, with power-supply pins to be bypassed with 0.01µF ceramic capacitors. |
| 8 | NC | unconnected | No internal connection on this pin (NC indicates no internal connection per the datasheet). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
OPA349UA - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
opa349ua-etched.step/opa349ua-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa349ua.step/opa349ua.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
2ad4d2616ad20ca5, retrieved 2026-10-11, 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).