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ms358

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Hangzhou Ruimeng Tech Operational Amplifier, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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MS358

Hangzhou Ruimeng Tech · Operational Amplifier · SOP-8

MS358 from Hangzhou Ruimeng 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 OUT1 output Output of op-amp A. Class-A output at small signals, class-B at large signals, sourcing up to ~30 mA and sinking up to ~8 mA at V+=15 V. Short-circuit-to-ground current is ~30-85 mA at V+=15 V; sustained shorts to V+ will destroy the die.
2 IN1- input Inverting input of op-amp A. High-impedance PNP input with ~30 nA typical input bias current and ~3 mV typical input offset voltage. Absolute-max input voltage -0.3 V to 40 V; do not drive below V- - 0.3 V or the internal PNP base-collector diode will conduct.
3 IN1+ input Non-inverting input of op-amp A. Common-mode input range extends from ground (V-) up to V+ - 1.5 V, allowing single-supply operation. Same absolute-max limits as IN1-.
4 GND power_in Negative supply / ground (V-). In single-supply operation tie to 0 V; in split-supply operation tie to the negative rail. Total supply voltage (V+ - V-) must not exceed 40 V.
5 IN2+ input Non-inverting input of op-amp B. Same electrical characteristics as IN1+: rail-to-ground common-mode range up to V+ - 1.5 V and 30 nA typical bias current.
6 IN2- input Inverting input of op-amp B. Same electrical characteristics as IN1-: ~30 nA bias current, ~3 mV offset, and same absolute-max voltage limits.
7 OUT2 output Output of op-amp B. Same drive capability as OUT1: ~30 mA source / ~8 mA sink at V+=15 V, VO=2 V, with VOL ~5 mV at RL=10 k to ground.
8 VCC power_in Positive supply (V+). Operating range 2.5 V to 36 V single-supply (up to 40 V absolute max V+ - V-). Bypass with 0.1 uF ceramic to GND close to the pin to reduce noise coupling.

Key specifications

Parameter Value
Manufacturer Hangzhou Ruimeng Tech
Package SOP-8
Category Op-amp/Cmp
Pins 8

Ordering variants

  • MS358MS321
  • MS358
  • MS358MS324
  • MS358MS324N

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage range (recommended) V+ 2.5 36 V 1
Operating temperature (recommended) TA -40 85 ℃ 8
Supply voltage (V+ - V-) V+ - V- 40 V 2
Input voltage -0.3 40 V 2
Input current 50 mA VIN < -0.3V 2
Junction temperature 150 ℃ 2
Lead temperature (soldering) 260 ℃ 10 s 2
Infrared reflow temperature 215 ℃ 10 s 2
Storage temperature Tstg -65 150 ℃ 2
Input offset voltage VOS 3 7 mV 3
Input offset voltage over temperature VOS 9 mV –40°C ≤ TA ≤ 85°C 3
Input bias current BI 30 250 nA 3
Input bias current over temperature BI 500 nA –40°C ≤ TA ≤ 85°C 3
Input offset current OS I 5 50 nA 3
Input offset current over temperature OS I 150 nA –40°C ≤ TA ≤ 85°C 3
Input common-mode voltage range (low limit) VCM 0 V V+=30V ,CMRR>=50dB 3
Common-mode rejection ratio CMRR 65 85 dB RS≤10kΩ 3
Large-signal voltage gain AVO 88 100 dB V+=15V,RL=2KΩ VO=1.4V～11.4V 3
Large-signal voltage gain over temperature AVO 83 dB V+=15V,RL=2KΩ VO=1.4V ～11.4V –40°C ≤ TJ ≤ 85°C 3
Output voltage swing high VOH 26 V V+=30V,RL=2KΩ –40°C ≤ TJ ≤ 85°C 3
Output voltage swing high VOH 27 28 V V+=30V,RL=10KΩ –40°C ≤ TJ ≤ 85°C 3
Output voltage swing low VOL 5 20 mV V+=5V,RL=10KΩ –40°C ≤ TJ ≤ 85°C 3
Output source current SOURCE I 20 30 mA VID=+1V,V+=15V,VO=2V 3
Output source current over temperature SOURCE I 10 20 mA ID=+1V,V+=15V,VO=2V –40°C ≤ TJ ≤ 85°C 3
Output sink current SINK I 5 8 mA VID=-1V,V+=15V,VO=2V 3
Output sink current over temperature SINK I 3 6 mA ID=-1V,V+=15V,VO=2V –40°C ≤ TJ ≤ 85°C 3
Output sink current at low output SINK I 12 100 uA VID=-1V,V+=15V,VO=0.2V 3
Output short-circuit current to ground OI 30 85 mA V+=15V 3
Power supply rejection ratio PSRR 65 100 dB RS ≤10kΩ,V+ ≤5V～ 30V 3
Quiescent current per amplifier QI 0.43 1.15 mA V+=5V 3
Quiescent current per amplifier over temperature QI 0.7 1.2 mA V+=5V,–40°C ≤ TJ ≤ 85°C 3
Quiescent current per amplifier QI 0.66 2.85 mA V+=30V 3
Quiescent current per amplifier over temperature QI 1.5 3 mA V+=30V,–40°C ≤ TJ ≤ 85°C 3
Gain bandwidth product GBW 1 MHz V+=30V,f=100KHz VIN=10mV,RL=2KΩ CL=100pF 4
Slew rate SR 0.4 V/s V+=15V,RL=2KΩ VIN=0.5V～3V CL=100pF,单位增益 4
Phase margin m 60 degrees 4
Voltage noise density ne 60 nV/√Hz f=1kHz,Rs=100Ω,V+=30V 4
Total harmonic distortion THD 0.015 % f=1kHz,AV=20dB,RL=2KΩ VO=2VPP CL=100pF,V+=30V 4

CAD (KiCad official)

  • Symbol: MS358
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ms358-etched.step / ms358-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ms358.step / ms358.glb are the bare package body.

Provenance

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

  • Datasheet: Hangzhou Ruimeng Tech datasheet (None pp, sha256 fdcf8a1a1925c383, retrieved 2026-08-17, 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: 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).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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