component

RS8558XK

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by Ray

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

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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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Contents

README

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RS8558XK

Jiangsu RUNIC Tech · Precision OpAmps · SOP-8

RS8558XK from Jiangsu RUNIC 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 OUTA output Output of amplifier A. Rail-to-rail output swing; typical short-circuit current 48mA. VOH within 2mV of V+ and VOL within 1mV of V- with RL=100kΩ.
2 -INA input Inverting input of amplifier A. Rail-to-rail input; common-mode range extends (V-)-0.2V to (V+)+0.2V. Input bias current typically 50pA.
3 +INA input Non-inverting input of amplifier A. Rail-to-rail input; common-mode range (V-)-0.2V to (V+)+0.2V. Input bias current typically 50pA.
4 V- power_in Negative supply rail (or ground for single-supply operation). Supply range +2.7V to +5.5V referenced to V+; absolute max V+ to V- is 7.0V.
5 +INB input Non-inverting input of amplifier B. Rail-to-rail input; common-mode range (V-)-0.2V to (V+)+0.2V. Input bias current typically 50pA.
6 -INB input Inverting input of amplifier B. Rail-to-rail input; common-mode range (V-)-0.2V to (V+)+0.2V. Input bias current typically 50pA.
7 OUTB output Output of amplifier B. Rail-to-rail output swing; typical short-circuit current 48mA. VOH within 2mV of V+ and VOL within 1mV of V- with RL=100kΩ.
8 V+ power_in Positive supply rail. Supply range +2.7V to +5.5V (single supply) or ±1.35V to ±2.75V (dual supply). Absolute max V+ to V- is 7.0V; quiescent current 650µA per amplifier (typ).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • RS8558XK
  • RS8558XKXM

CAD (KiCad official)

  • Symbol: RS8558XK
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-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