component
OPA445AU
Public Made by Adomby adom
Texas Instruments FET Input Amplifiers, SOIC-8. Datasheet-verified pinout, 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
markdownOPA445AU
Texas Instruments · FET Input Amplifiers · SOIC-8
OPA445AU 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 | Offset Trim | passive | Offset voltage trim connection; connect 10kΩ-1MΩ potentiometer to pin 5 to adjust VOS ±10mV typical. |
| 2 | -In | input | Inverting input; common-mode voltage range (V−) + 5V to (V+) − 5V with 10¹³Ω |
| 3 | +In | input | Non-inverting input; common-mode voltage range (V−) + 5V to (V+) − 5V with 10¹³Ω |
| 4 | V- | power_in | Negative power supply; operating range ±10V to ±45V (maximum ±50V) with ±4.7mA quiescent current. |
| 5 | Offset Trim | passive | Offset voltage trim connection; connect 10kΩ-1MΩ potentiometer to pin 1 to adjust VOS ±10mV typical. |
| 6 | Output | output | Operational amplifier output; ±15mA output current, (V−) + 5 to (V+) − 5V swing at ±40V supplies, 220Ω open-loop output resistance. |
| 7 | V+ | power_in | Positive power supply; operating range ±10V to ±45V (maximum ±50V) with ±4.7mA quiescent current. |
| 8 | NC | unconnected | No internal connection; leave floating or connect to ground, V+, or V−. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
OPA445AU - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
opa445au-etched.step/opa445au-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);opa445au.step/opa445au.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
a2e66b155db94e0a, 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).