component
LM318D
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
markdownLM318D
Texas Instruments · Operational Amplifier · SOIC-8
LM318D 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 | BAL/COMP1 | passive | Balance/frequency-compensation terminal; external compensation may be added for optimum performance. |
| 2 | IN- | input | Inverting input; magnitude must never exceed the supply voltage or 15 V, whichever is less. |
| 3 | IN+ | input | Noninverting input; magnitude must never exceed the supply voltage or 15 V, whichever is less. |
| 4 | VCC- | power_in | Negative supply, rated to -20 V absolute maximum (supply range ±5 V to ±20 V). |
| 5 | BAL/COMP3 | passive | Balance/frequency-compensation terminal; external compensation may be added for optimum performance. |
| 6 | OUT | output | Amplifier output with overload protection; short circuit to ground or either supply is allowed for unlimited duration. |
| 7 | VCC+ | power_in | Positive supply, rated to 20 V absolute maximum (supply range ±5 V to ±20 V). |
| 8 | COMP2 | passive | Frequency-compensation terminal; internal unity-gain compensation is provided, external compensation optional. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM318D - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
lm318d-etched.step/lm318d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm318d.step/lm318d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (16 pp, sha256
f9f6af99ab305ef3, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).