component
lm318g-s08-r
Public Unreviewedby Ray
UTC Unisonic Tech Operational Amplifier, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownLM318G-S08-R
UTC Unisonic Tech · Operational Amplifier · SOP-8
LM318G-S08-R from UTC Unisonic Tech, in a SOP-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 | COMP-1 | passive | Frequency compensation node 1. External compensation components may be added between COMP-1, COMP-2, and COMP-3 for feed-forward compensation (slew rate >150V/µs) or overcompensation (greater stability at reduced bandwidth). |
| 2 | IN- | input | Inverting input of the operational amplifier. Input bias current typically 150nA (500nA max at 25°C), input voltage range ±11.5V at VCC=±15V. Inputs are protected by opposite-facing base-emitter diodes; limit differential input to <1V without series resistance. |
| 3 | IN+ | input | Non-inverting input of the operational amplifier. Input bias current typically 150nA (500nA max at 25°C), input voltage range ±11.5V at VCC=±15V. Inputs are protected by opposite-facing base-emitter diodes. |
| 4 | VCC- | power_in | Negative supply rail. Rated -20V absolute maximum; typical operating range -5V to -20V. Must be bypassed with a 0.1µF (or larger) disc ceramic capacitor within an inch of the device. |
| 5 | COMP-3 | passive | Frequency compensation node 3. Used in conjunction with COMP-1 and COMP-2 for external frequency compensation, feed-forward compensation, or overcompensation networks. |
| 6 | OUTPUT | output | Op-amp output. Output voltage swing typically ±13V (±12V min) with VCC=±15V and RL=2kΩ. Output is short-circuit protected (continuous short-circuit duration). |
| 7 | VCC+ | power_in | Positive supply rail. Rated +20V absolute maximum; typical operating range +5V to +20V. Supply current typically 5mA (10mA max). Must be bypassed with a 0.1µF (or larger) disc ceramic capacitor within an inch of the device. |
| 8 | COMP-2 | passive | Frequency compensation node 2. Used with COMP-1 and COMP-3 for external compensation networks; adding a single capacitor can reduce settling time for 0.1% error band to under 1µs. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOP-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |
Ordering variants
LM318G-S08-RLM318G-S08-RLM318L-S08-RLM318G-S08-RLM318G-D08-TLM318G-S08-RLM318L-D08-T
CAD (KiCad official)
- Symbol:
LM318G-S08-R - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (None pp, sha256
482ab1f292352a32, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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