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MS8628

Public Made by Adom

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Hangzhou Ruimeng Tech Precision Op Amps, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MS8628

Hangzhou Ruimeng Tech · Precision Op Amps · SOP-8

MS8628 from Hangzhou Ruimeng Tech, in a SOP-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 NC unconnected No connect, not internally connected.
2 -IN input Inverting input of the amplifier; input voltage range is 0 V to Vs (rail-to-rail) and must stay within -Vs-0.3 V to +Vs+0.3 V.
3 +IN input Non-inverting input of the amplifier; input voltage range is 0 V to Vs (rail-to-rail) and must stay within -Vs-0.3 V to +Vs+0.3 V.
4 -VS power_in Negative supply (ground in single-supply use); single supply 1.8 V to 5.5 V (±0.9 V to ±2.5 V dual) across -VS to +VS.
5 NC unconnected No connect, not internally connected.
6 OUT output Rail-to-rail amplifier output with 30 mA output current at 5 V supply.
7 +VS power_in Positive supply, 1.8 V to 5.5 V single supply with absolute maximum supply voltage of 6 V.
8 NC unconnected No connect, not internally connected.

Key specifications

Parameter Value
Manufacturer Hangzhou Ruimeng Tech
Package SOP-8
Category Amplifiers/Comparators
Pins 8

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 (5V) VOS 2 5 μV Vs=+5V, VCM=+2.5V, Vo=+2.5V, TA=25°C 3
Input offset voltage over temperature (5V) VOS 10 μV -40°C≤TA≤125°C 3
Input bias current (5V, MS8628/MS8629 column) IB 30 100 pA Vs=+5V, TA=25°C 3
Input offset current (5V) IOS 40 200 pA Vs=+5V, TA=25°C 3
Input offset current over temperature (5V) IOS 250 pA -40°C≤TA≤125°C 3
Input voltage range (5V) VCM 0 5 V Vs=+5V 3
Common-mode rejection ratio (5V) CMRR 120 140 dB VCM=0V to 5V, TA=25°C 3
Common-mode rejection ratio over temperature (5V) CMRR 115 130 dB VCM=0V to 5V, -40°C≤TA≤125°C 3
Large-signal voltage gain (5V) AVO 127 145 dB RL=10kΩ, Vo=0.3V to 4.7V, TA=25°C 3
Large-signal voltage gain over temperature (5V) AVO 120 135 dB RL=10kΩ, Vo=0.3V to 4.7V, -40°C≤TA≤125°C 3
Input offset voltage drift (5V) VOS/ΔT 0.03 0.05 μV/°C -40°C≤TA≤125°C 3
Output voltage high (5V) VOH 4.99 4.996 V RL=100kΩ to -Vs 3
Output voltage high (5V) VOH 4.99 4.995 V RL=10kΩ to -Vs 3
Output voltage low (5V) VOL 1 5 mV RL=100kΩ to +Vs, TA=25°C 3
Output voltage low over temperature (5V) VOL 2 5 mV RL=100kΩ to +Vs, -40°C≤TA≤125°C 3
Output voltage low (5V) VOL 10 20 mV RL=10kΩ to +Vs, TA=25°C 3
Output voltage low over temperature (5V) VOL 15 20 mV RL=10kΩ to +Vs, -40°C≤TA≤125°C 3
Short-circuit current (5V) ISC 25 50 mA Vo=2.5V, RL=10Ω to GND 3
Output current (5V) Io 30 mA TA=25°C 3
Power supply rejection ratio (5V) PSRR 115 130 dB Vs=1.8V to 5.5V, -40°C≤TA≤125°C 3
Quiescent current per amplifier (5V) IQ 0.85 1.1 mA Vo=Vs/2, TA=25°C 3
Quiescent current per amplifier over temperature (5V) IQ 1 1.2 mA Vo=Vs/2, -40°C≤TA≤125°C 3
Input offset voltage (2.7V) VOS 0.5 5 μV Vs=+2.7V, VCM=+1.35V, Vo=+1.35V, TA=25°C 4
Input offset voltage over temperature (2.7V) VOS 10 μV -40°C≤TA≤125°C 4
Input bias current (2.7V, MS8628/MS8629 column) IB 30 100 pA Vs=+2.7V, TA=25°C 4
Input offset current (2.7V) IOS 50 200 pA Vs=+2.7V, TA=25°C 4
Input offset current over temperature (2.7V) IOS 250 pA -40°C≤TA≤125°C 4
Input voltage range (2.7V) VCM 0 2.7 V Vs=+2.7V 4
Common-mode rejection ratio (2.7V) CMRR 115 130 dB VCM=0V to 2.7V, TA=25°C 4
Common-mode rejection ratio over temperature (2.7V) CMRR 110 120 dB VCM=0V to 2.7V, -40°C≤TA≤125°C 4
Large-signal voltage gain (2.7V) AVO 110 140 dB RL=10kΩ, Vo=0.3V to 2.4V, TA=25°C 4
Large-signal voltage gain over temperature (2.7V) AVO 105 130 dB RL=10kΩ, Vo=0.3V to 2.4V, -40°C≤TA≤125°C 4
Input offset voltage drift (2.7V) VOS/ΔT 0.03 0.05 μV/°C -40°C≤TA≤125°C 4
Output voltage high (2.7V) VOH 2.68 2.695 V RL=100kΩ to -Vs 4
Output voltage high (2.7V) VOH 2.67 2.68 V RL=10kΩ to -Vs 4
Output voltage low (2.7V) VOL 1 5 mV RL=100kΩ to +Vs, TA=25°C 4
Output voltage low over temperature (2.7V) VOL 2 5 mV RL=100kΩ to +Vs, -40°C≤TA≤125°C 4
Output voltage low (2.7V) VOL 10 20 mV RL=10kΩ to +Vs, TA=25°C 4
Output voltage low over temperature (2.7V) VOL 15 20 mV RL=10kΩ to +Vs, -40°C≤TA≤125°C 4
Short-circuit current (2.7V) ISC 10 15 mA Vo=2.5V, RL=10Ω to GND 4
Output current (2.7V) Io 10 mA TA=25°C 4
Power supply rejection ratio (2.7V) PSRR 115 130 dB Vs=1.8V to 5.5V, -40°C≤TA≤125°C 4
Quiescent current per amplifier (2.7V) IQ 0.75 1 mA Vo=Vs/2, TA=25°C 4
Quiescent current per amplifier over temperature (2.7V) IQ 0.9 1.2 mA Vo=Vs/2, -40°C≤TA≤125°C 4
Supply voltage (absolute maximum) VS 6 V 2
Input pin voltage -0.3 0.3 V Relative to -Vs / +Vs (printed as -Vs-0.3 to (+Vs)+0.3) 2
Differential input voltage -5 5 V or supply voltage, whichever is smaller 2
Junction temperature range -65 150 °C 2
Operating temperature TA -40 125 °C 2
Storage temperature Tstg -65 150 °C 2
Lead temperature (soldering) 300 °C 60 seconds 2
ESD HBM 4000 V Human body model 2
ESD MM 200 V Machine model 2
Supply voltage (single supply) VS 1.8 5.5 V Single supply operating range (features list) 1

CAD (KiCad official)

  • Symbol: MS8628
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ms8628-etched.step / ms8628-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ms8628.step / ms8628.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Hangzhou Ruimeng Tech datasheet (15 pp, sha256 7f457e8cc1cd3c23, retrieved 2026-10-17, 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, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF