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MS8551S
Public Made by Adomby adom
Hangzhou Ruimeng Tech Precision OpAmps, 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
markdownMS8551S
Hangzhou Ruimeng Tech · Precision OpAmps · SOT-23-5
MS8551S from Hangzhou Ruimeng Tech, 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 | OUT | output | Amplifier output with rail-to-rail swing (VOH 4.998V typ at 5V supply, 100kΩ load; short-circuit current 51mA typ at 5V). |
| 2 | -VS | power_in | Negative supply (ground in single-supply use); supply range 2.5V to 5.5V between +VS and -VS, absolute maximum 6V. |
| 3 | +IN | input | Non-inverting input with rail-to-rail input range 0V to 5V at 5V supply and 20pA typical input bias current. |
| 4 | -IN | input | Inverting input with rail-to-rail input range; differential input voltage limited to -5V to 5V. |
| 5 | +VS | power_in | Positive supply, 2.5V to 5.5V operating range (6V absolute maximum), 400µA typical quiescent current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Hangzhou Ruimeng Tech |
| Package | SOT-23-5 |
| Category | Amplifiers |
| 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 |
|---|---|---|---|---|---|---|---|
| Input offset voltage | VOS | 8 | 24 | µV | Vs=5V, TA=25°C | 2 | |
| Input offset voltage | VOS | 28 | µV | Vs=5V, -40°C≤TA≤125°C | 2 | ||
| Common-mode rejection ratio | CMRR | 90 | 110 | dB | Vs=5V, VCM=0V to 5V | 2 | |
| Common-mode rejection ratio | CMRR | 83 | dB | Vs=5V, VCM=0V to 5V, -40°C≤TA≤125°C | 2 | ||
| Large signal gain | AVO | 100 | 145 | dB | Vs=5V, RL=10kΩ, Vo=0.3V to 4.7V | 2 | |
| Large signal gain | AVO | 97 | dB | Vs=5V, RL=10kΩ, Vo=0.3V to 4.7V, -40°C≤TA≤125°C | 2 | ||
| Output voltage high | VOH | 4.99 | 4.998 | V | Vs=5V, RL=100kΩ to -Vs | 2 | |
| Output voltage high | VOH | 4.987 | V | Vs=5V, RL=100kΩ to -Vs, -40°C≤TA≤125°C | 2 | ||
| Output voltage high | VOH | 4.985 | 4.991 | V | Vs=5V, RL=10kΩ to -Vs | 2 | |
| Output voltage high | VOH | 4.98 | V | Vs=5V, RL=10kΩ to -Vs, -40°C≤TA≤125°C | 2 | ||
| Output voltage low | VOL | 2 | 10 | mV | Vs=5V, RL=100kΩ to +Vs | 2 | |
| Output voltage low | VOL | 13 | mV | Vs=5V, RL=100kΩ to +Vs, -40°C≤TA≤125°C | 2 | ||
| Output voltage low | VOL | 9 | 15 | mV | Vs=5V, RL=10kΩ to +Vs | 2 | |
| Output voltage low | VOL | 20 | mV | Vs=5V, RL=10kΩ to +Vs, -40°C≤TA≤125°C | 2 | ||
| Short-circuit current | ISC | 40 | 51 | mA | Vs=5V, Vo=2.5V, RL=10Ω to GND | 2 | |
| Short-circuit current | ISC | 23 | mA | Vs=5V, Vo=2.5V, RL=10Ω to GND, -40°C≤TA≤125°C | 2 | ||
| Power supply rejection ratio | PSRR | 90 | 110 | dB | Vs=2.5V to 5.5V | 2 | |
| Power supply rejection ratio | PSRR | 80 | dB | Vs=2.5V to 5.5V, -40°C≤TA≤125°C | 2 | ||
| Quiescent current | IQ | 400 | 500 | µA | Vs=5V, Vo=Vs/2 | 2 | |
| Quiescent current | IQ | 800 | µA | Vs=5V, Vo=Vs/2, -40°C≤TA≤125°C | 2 | ||
| Input voltage range | 0 | 5 | V | Vs=5V | 2 | ||
| Input bias current | IB | 20 | pA | Vs=5V | 2 | ||
| Input offset current | IOS | 74 | pA | Vs=5V | 2 | ||
| Input offset voltage drift | ΔVOS/ΔT | 56 | nV/℃ | Vs=5V, -40°C≤TA≤125°C | 2 | ||
| Gain bandwidth product | GBP | 1.16 | MHz | Vs=5V, Av=+100 | 2 | ||
| Slew rate | SR | 0.9 | V/µs | Vs=5V, Av=+1, RL=10kΩ, 2V output step | 2 | ||
| Overload recovery time | 0.06 | ms | Vs=5V, Av=-100, RL=10kΩ, VIN=200mV | 2 | |||
| Voltage noise | en p-p | 0.8 | µVPP | Vs=5V, 0.1Hz to 10Hz | 2 | ||
| Voltage noise density | en | 47.5 | nV/√Hz | Vs=5V, f=1kHz | 2 | ||
| Input offset voltage | VOS | 4 | 20 | µV | Vs=2.7V, TA=25°C | 3 | |
| Input offset voltage | VOS | 24 | µV | Vs=2.7V, -40°C≤TA≤125°C | 3 | ||
| Common-mode rejection ratio | CMRR | 90 | 100 | dB | Vs=2.7V, VCM=0V to 5V | 3 | |
| Common-mode rejection ratio | CMRR | 81 | dB | Vs=2.7V, VCM=0V to 5V, -40°C≤TA≤125°C | 3 | ||
| Large signal gain | AVO | 100 | 135 | dB | Vs=2.7V, RL=10kΩ, Vo=0.3V to 4.7V | 3 | |
| Large signal gain | AVO | 94 | dB | Vs=2.7V, RL=10kΩ, Vo=0.3V to 4.7V, -40°C≤TA≤125°C | 3 | ||
| Output voltage high | VOH | 2.69 | 2.699 | V | Vs=2.7V, RL=100kΩ to -Vs | 3 | |
| Output voltage high | VOH | 2.688 | V | Vs=2.7V, RL=100kΩ to -Vs, -40°C≤TA≤125°C | 3 | ||
| Output voltage high | VOH | 2.685 | 2.693 | V | Vs=2.7V, RL=10kΩ to -Vs | 3 | |
| Output voltage high | VOH | 2.682 | V | Vs=2.7V, RL=10kΩ to -Vs, -40°C≤TA≤125°C | 3 | ||
| Output voltage low | VOL | 0.2 | 10 | mV | Vs=2.7V, RL=100kΩ to +Vs | 3 | |
| Output voltage low | VOL | 12 | mV | Vs=2.7V, RL=100kΩ to +Vs, -40°C≤TA≤125°C | 3 | ||
| Output voltage low | VOL | 1 | 15 | mV | Vs=2.7V, RL=10kΩ to +Vs | 3 | |
| Output voltage low | VOL | 18 | mV | Vs=2.7V, RL=10kΩ to +Vs, -40°C≤TA≤125°C | 3 | ||
| Short-circuit current | ISC | 20 | 28 | mA | Vs=2.7V, Vo=2.5V, RL=10Ω to GND | 3 | |
| Short-circuit current | ISC | 15 | mA | Vs=2.7V, Vo=2.5V, RL=10Ω to GND, -40°C≤TA≤125°C | 3 | ||
| Power supply rejection ratio | PSRR | 90 | 110 | dB | Vs=2.5V to 5.5V | 3 | |
| Power supply rejection ratio | PSRR | 80 | dB | Vs=2.5V to 5.5V, -40°C≤TA≤125°C | 3 | ||
| Quiescent current | IQ | 500 | 550 | µA | Vs=2.7V, Vo=Vs/2 | 3 | |
| Quiescent current | IQ | 1050 | µA | Vs=2.7V, Vo=Vs/2, -40°C≤TA≤125°C | 3 | ||
| Supply voltage | 6 | V | 12 | ||||
| Differential input voltage | -5 | 5 | V | 12 | |||
| Storage temperature range | -65 | 150 | °C | 12 | |||
| Junction temperature | 150 | °C | 12 | ||||
| Operating temperature range | -40 | 125 | °C | 12 | |||
| Lead temperature | 260 | °C | 12 | ||||
| ESD human body model | 3000 | V | 12 | ||||
| ESD machine model | 200 | V | 12 |
CAD (KiCad official)
- Symbol:
MS8551S - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
ms8551s-etched.step/ms8551s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ms8551s.step/ms8551s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Hangzhou Ruimeng Tech datasheet (16 pp, sha256
afd06b3ec4fea5da, retrieved 2026-10-22, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).