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RS8031BXF
Public Made by Adomby adom
Jiangsu RUNIC Tech Operational Amplifier, SOT23-5. 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
markdownRS8031BXF
Jiangsu RUNIC Tech · Operational Amplifier · SOT23-5
RS8031BXF from Jiangsu RUNIC Tech, in a SOT23-5. 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 | Positive (noninverting) input of the RS8031B op amp, with input range -0.1V to 5.6V at Vs = 5.5V. |
| 2 | V- | power_in | Negative (lowest) power supply; the supply range VS=(V+)-(V-) is 1.4V to 5.5V. |
| 3 | -IN | input | Negative (inverting) input of the RS8031B op amp, diode-clamped to the supply rails with input current limited to 10mA. |
| 4 | OUT | output | Op-amp output, rail-to-rail, diode-clamped to the supply rails with output current limited to ±55mA. |
| 5 | V+ | power_in | Positive (highest) power supply; the supply range VS=(V+)-(V-) is 1.4V to 5.5V with absolute maximum 7V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | SOT23-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Voltage Range | VS | 1.4 | 5.5 | V | 8 | ||
| Quiescent Current/Amplifier | IQ | 800 | 1500 | nA | 8 | ||
| Power-Supply Rejection Ratio | PSRR | 62 | 70 | dB | VS=2.5V to 5.5V, VCM=(V-)+0.5V | 8 | |
| Input Offset Voltage | VOS | -4 | 0.8 | 4 | mV | VCM =VS/2 | 8 |
| Input Bias Current | IB | -10 | 1 | 10 | pA | 8 | |
| Input Offset Current | IOS | -10 | 1 | 10 | pA | 8 | |
| Common-Mode Voltage Range | VCM | -0.1 | 5.6 | V | VS= 5.5V | 8 | |
| Common-Mode Rejection Ratio | CMRR | 73 | 90 | dB | VS= 5.5V, VCM=-0.1V to 4V | 8 | |
| Common-Mode Rejection Ratio | CMRR | 60 | 83 | dB | VS= 5.5V, VCM=-0.1V to 5.6V | 8 | |
| Open-Loop Voltage Gain | AOL | 85 | 102 | dB | VS=1.4V, RL=50KΩ, VO=VS-0.1V | 8 | |
| Open-Loop Voltage Gain | AOL | 92 | 106 | dB | VS=5.0V, RL=50kΩ, VO=VS-0.1V | 8 | |
| Output Swing From Rail | 5 | mV | RL=50KΩ | 8 | |||
| Supply Voltage Absolute Maximum | VS | 7 | V | VS=(V+) - (V-) | 5 | ||
| Signal input pin voltage | -0.5 | 0.5 | V | min = (V-)-0.5, max = (V+)+0.5 | 5 | ||
| Signal output pin voltage | -0.5 | 0.5 | V | min = (V-)-0.5, max = (V+)+0.5 | 5 | ||
| Signal input pin current | -10 | 10 | mA | 5 | |||
| Signal output pin current | -55 | 55 | mA | 5 | |||
| Operating temperature range | TA | -40 | 125 | °C | 5 | ||
| Junction temperature | TJ | -40 | 150 | °C | 5 | ||
| Storage temperature | Tstg | -65 | 150 | °C | 5 | ||
| Supply voltage single-supply | Vs | 1.4 | 5.5 | V | Single-supply | 5 | |
| Supply voltage dual-supply | Vs | -0.7 | 2.75 | V | Dual-supply, printed ±0.7 to ±2.75 | 5 | |
| Junction-to-ambient thermal resistance | RθJA | 273.8 | °C/W | SOT23-5 | 5 | ||
| Junction-to-case(top) thermal resistance | RθJC(top) | 126.8 | °C/W | SOT23-5 | 5 | ||
| Junction-to-board thermal resistance | RθJB | 85.9 | °C/W | SOT23-5 | 5 | ||
| Junction-to-top characterization parameter | ΨJT | 10.9 | °C/W | SOT23-5 | 5 | ||
| Junction-to-board characterization parameter | ΨJB | 84.9 | °C/W | SOT23-5 | 5 | ||
| Input Offset Voltage Average Drift | VOS TC | 2.3 | uV/°C | VCM =VS/2, TA= -40°C to 125°C, printed ±2.3 | 8 | ||
| Output Short-Circuit Current | IOUT | 30 | mA | 8 | |||
| Slew Rate | SR | 7.5 | V/ms | 8 | |||
| Gain-Bandwidth Product | GBP | 15 | kHz | 8 | |||
| Phase Margin | PM | 60 | ° | 8 | |||
| Input Voltage Noise | enp-p | 2.4 | uVpp | f = 0.1 Hz to 10 Hz | 8 | ||
| Input Voltage Noise Density | en | 160 | nV/√Hz | f = 1 kHz | 8 |
CAD (KiCad official)
- Symbol:
RS8031BXF - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT23-5 (KiCad packages3D, STEP)
- 3D model files:
rs8031bxf-etched.step/rs8031bxf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rs8031bxf.step/rs8031bxf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jiangsu RUNIC Tech datasheet (16 pp, sha256
77133d839a148141, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).