component
S321
Public Made by Adomby adom
Silicore(芯谷) 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
markdownS321
Silicore(芯谷) · Operational Amplifier · SOT-23-5
S321 from Silicore(芯谷), 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 | +IN | input | Non-inverting input of the rail-to-rail input amplifier, with input voltage range -0.1 V to +5.6 V at VS = 5.5 V. |
| 2 | V- | power_in | Negative supply (ground in single-supply use); supply operating range 2.1 V to 5.5 V, absolute maximum 7.5 V total. |
| 3 | -IN | input | Inverting input of the rail-to-rail input amplifier, with very low input bias current of 10 pA typical. |
| 4 | OUTPUT | output | Rail-to-rail amplifier output, with 20 mA minimum output current (RL = 100 kΩ condition) and stable with up to 200 pF load without series resistance. |
| 5 | V+ | power_in | Positive supply, operating range 2.1 V to 5.5 V with absolute maximum of 7.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Silicore(芯谷) |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Supply Voltage | 0 | 7.5 | V | 2 | |||
| Operating Temperature Range | -40 | 85 | °C | 2 | |||
| Power Supply Operating Range | 2.1 | 5.5 | V | 2 | |||
| Operating Temperature Range | -45 | 85 | °C | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Maximum Junction Temperature | 160 | °C | 2 | ||||
| Lead Temperature | 260 | °C | 10 seconds | 2 | |||
| Input offset voltage | -5 | 0.8 | 5 | mV | 3 | ||
| Power supply rejection ratio | 60 | 82 | dB | Vs=+2.5V～ +5.5V | 3 | ||
| Common mode rejection ratio | 56 | 68 | dB | Vs=5.5V, Vo = 0.1～4.9V | 3 | ||
| Supply current | 120 | 240 | µA | 3 | |||
| Input common mode voltage range | -0.1 | 5.6 | V | Vs=5.5V | 3 | ||
| Output current | 20 | 23 | mA | RL=100kΩ | 3 | ||
| Gain bandwidth product | 1 | MHz | CL=100pF | 3 | |||
| Phase margin | 52 | Deg | 3 | ||||
| Gain margin | 17 | dB | 3 | ||||
| Slew rate | 0.52 | V/µs | Vo=1Vpp | 3 | |||
| Input voltage noise | 36 | nV/Hz | >50kHz | 3 | |||
| Input bias current | 10 | pA | 3 | ||||
| Input offset current | 10 | pA | 3 | ||||
| Output voltage Swing from Rail | 0.008 | V | RL=100kΩ | 3 |
CAD (KiCad official)
- Symbol:
S321 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
s321-etched.step/s321-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);s321.step/s321.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Silicore(芯谷) datasheet (10 pp, sha256
e5f9bc467511bd03, retrieved 2026-10-17, 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).