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RS8558XM

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by Ray

Jiangsu RUNIC Tech Precision OpAmps, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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RS8558XM

Jiangsu RUNIC Tech · Precision OpAmps · MSOP-8

RS8558XM from Jiangsu RUNIC Tech, in a MSOP-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 OUT A output Amplifier A output. Rail-to-rail output; short-circuit current typ 48 mA. Drives loads referenced between V+ and V-.
2 -IN A input Inverting input of amplifier A. High-impedance CMOS input (IB typ 50 pA). Common-mode range extends from (V-)-0.2 V to (V+)+0.2 V (rail-to-rail input).
3 +IN A input Non-inverting input of amplifier A. High-impedance CMOS input (IB typ 50 pA). Rail-to-rail input common-mode range.
4 V- power_in Negative supply rail (or ground in single-supply operation). Total supply V+ to V- must be between 2.7 V and 5.5 V (absolute max 7.0 V). Place a 0.1 uF decoupling cap close to the supply pins.
5 +IN B input Non-inverting input of amplifier B. High-impedance CMOS input (IB typ 50 pA). Rail-to-rail input common-mode range.
6 -IN B input Inverting input of amplifier B. High-impedance CMOS input (IB typ 50 pA). Rail-to-rail input common-mode range.
7 OUT B output Amplifier B output. Rail-to-rail output; short-circuit current typ 48 mA.
8 V+ power_in Positive supply rail. Operating range +2.7 V to +5.5 V (absolute max 7.0 V). Bypass with a 0.1 uF capacitor close to the pin. Quiescent current 650 uA per amplifier (typ).

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package MSOP-8
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • RS8558XM
  • RS8558XK

CAD (KiCad official)

  • Symbol: RS8558XM
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (13 pp, sha256 c9d7ae209903208c, retrieved 2026-08-17, tier: lcsc)
  • 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