component

RS8522XK

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by Ray

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

componentop-amp-cmprs8522xk
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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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RS8522XK

Jiangsu RUNIC Tech · Precision OpAmps · SOP-8

RS8522XK 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 OUT A output Output of amplifier A. Rail-to-rail push-pull CMOS output; typ source/sink 25 mA short-circuit current; drives loads down to 10 kOhm to Vs/2.
2 -IN A input Inverting input of amplifier A. High-impedance CMOS input; input bias current ~10 pA typ; input voltage range extends 100 mV beyond either supply rail.
3 +IN A input Non-inverting input of amplifier A. High-impedance CMOS input; rail-to-rail common-mode range (V- - 0.1 V to V+ + 0.1 V); input bias current ~10 pA typ.
4 V- power_in Negative supply rail (or ground in single-supply operation). Total supply span V+ to V- must be between 2.5 V and 5.5 V (7.0 V absolute maximum). Bypass with 0.1 uF close to the pin.
5 +IN B input Non-inverting input of amplifier B. High-impedance CMOS input; rail-to-rail common-mode range (V- - 0.1 V to V+ + 0.1 V); input bias current ~10 pA typ.
6 -IN B input Inverting input of amplifier B. High-impedance CMOS input; input bias current ~10 pA typ; input voltage range extends 100 mV beyond either supply rail.
7 OUT B output Output of amplifier B. Rail-to-rail push-pull CMOS output; typ source/sink 25 mA short-circuit current; drives loads down to 10 kOhm to Vs/2.
8 V+ power_in Positive supply rail. Operating range 2.5 V to 5.5 V single supply (or +/-1.25 V to +/-2.75 V split); 7.0 V absolute maximum with respect to V-. Bypass with 0.1 uF close to the pin.

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.

  • RS8522XK
  • RS8522XM

CAD (KiCad official)

  • Symbol: RS8522XK
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
rs8522xk.step 122 KB You want the bare part, or you mark your own boards.
rs8522xk-etched.step 2.1 MB You want the part with RS8522XK already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 500 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (14 pp, sha256 15342dc49863196c, 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