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RS722PXK

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Jiangsu RUNIC Tech Operational Amplifier, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs rs722pxk: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers rs722pxk: viewers · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
page.json rs722pxk: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray 18h ago
README.md rs722pxk: specified limits as data (metadata.characteristics, 44 rows from the datasheet) · Ray 19d ago
rs722pxk-etched.fit.json rs722pxk: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
rs722pxk-etched.glb rs722pxk: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray 18h ago
rs722pxk-etched.step rs722pxk: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body wi… · Ray 18h ago
rs722pxk.glb Publish 0.1.0 · Ray 2mo ago
rs722pxk.kicad_mod Publish 0.1.0 · Ray 2mo ago
rs722pxk.kicad_sym Publish 0.1.0 · Ray 2mo ago
rs722pxk.lbr Publish 0.1.0 · Ray 2mo ago
rs722pxk.step Publish 0.1.0 · Ray 2mo ago

RS722PXK

Jiangsu RUNIC Tech · Operational Amplifier · SOP-8

RS722PXK 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 channel A. Rail-to-rail output; can source/sink up to ~140 mA typical, short-circuit protected.
2 -INA input Inverting input, channel A. Rail-to-rail CMOS input; common-mode range -0.2V to +5.7V with Vs=5.5V. Input bias current ~1 pA typical.
3 +INA input Noninverting input, channel A. Rail-to-rail CMOS input; common-mode range -0.2V to +5.7V with Vs=5.5V. Input bias current ~1 pA typical.
4 V- power_in Negative (lowest) power supply. Connect to ground for single-supply operation; supports single-supply 2.5V to 5.5V or dual-supply ±1.25V to ±2.75V.
5 +INB input Noninverting input, channel B. Rail-to-rail CMOS input; common-mode range -0.2V to +5.7V with Vs=5.5V. Input bias current ~1 pA typical.
6 -INB input Inverting input, channel B. Rail-to-rail CMOS input; common-mode range -0.2V to +5.7V with Vs=5.5V. Input bias current ~1 pA typical.
7 OUTB output Output of amplifier channel B. Rail-to-rail output; can source/sink up to ~140 mA typical, short-circuit protected.
8 V+ power_in Positive (highest) power supply. Single-supply 2.5V to 5.5V, absolute max Vs=(V+)-(V-)=7V. Quiescent current ~1.1 mA per amplifier.

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.

  • RS722PXK
  • RS722PXKXM
  • RS722PXKXQ
  • RS722PXKXTDE8

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, Vs=(V+)-(V-) Vs 7 V 4
Signal input pin current -10 10 mA 4
Signal output pin current -150 150 mA 4
Operating range, TA TA -40 125 °C 4
Junction, TJ TJ 150 °C 4
Storage, Tstg Tstg -65 150 °C 4
ESD Human-body model (HBM) V(ESD) 3000 V HBM 4
ESD Machine Model (MM) V(ESD) 200 V MM 4
Supply voltage, signal-supply Vs 2.5 5.5 V 4
Supply voltage, dual-supply Vs 1.25 2.75 V Dual-supply ±1.25 to ±2.75 as printed 4
Specified temperature -40 125 °C 4
Junction-to-ambient thermal resistance (SOIC-8) RθJA 116 °C/W 5
Junction-to-case(top) thermal resistance (SOIC-8) RθJC(top) 60 °C/W 5
Junction-to-board thermal resistance (SOIC-8) RθJB 56 °C/W 5
Junction-to-top characterization parameter (SOIC-8) ΨJT 12.8 °C/W 5
Junction-to-board characterization parameter (SOIC-8) ΨJB 98.3 °C/W 5
Operating Voltage Range Vs 2.5 5.5 V 25C 7
Quiescent Current/Amplifier IQ 1.1 1.55 mA 25C 7
Power-Supply Rejection Ratio PSRR 75 97 dB Vs=2.5V to 5.5V, VCM=(V-)+0.5V, 25C 7
Power-Supply Rejection Ratio PSRR 65 dB Vs=2.5V to 5.5V, VCM=(V-)+0.5V, -40C to 125C 7
Turn-on Time Ton 13 us 25C 7
Input Offset Voltage Vos -0.8 0.3 0.8 mV VCM= VS/2, 25C 7
Input Offset Voltage Average Drift Vos TC 2.6 uV/C -40C to125C 7
Input Bias Current IB 1 1 10 pA 25C 7
Input Offset Current IOS 1 1 10 pA 25C 7
Common-Mode Voltage Range VCM -0.2 5.7 V Vs= 5.5V, 25C 7
Common-Mode Rejection Ratio CMRR 77 97 dB Vs= 5.5V, VCM=-0.2V to 4V, 25C 7
Common-Mode Rejection Ratio CMRR 67 dB Vs= 5.5V, VCM=-0.2V to 4V, -40C to 125C 7
Common-Mode Rejection Ratio CMRR 65 81 dB Vs= 5.5V, VCM=-0.2V to 5.7V, 25C 7
Common-Mode Rejection Ratio CMRR 57 dB Vs= 5.5V, VCM=-0.2V to 5.7V, -40C to 125C 7
Open-Loop Voltage Gain AOL 95 103 dB RL=2KΩ, Vo=0.15V to 4.85V, 25C 7
Open-Loop Voltage Gain AOL 65 dB RL=2KΩ, Vo=0.15V to 4.85V, -40C to 125C 7
Open-Loop Voltage Gain AOL 100 110 dB RL=10KΩ, Vo=0.05V to 4.95V, 25C 7
Open-Loop Voltage Gain AOL 66 dB RL=10KΩ, Vo=0.05V to 4.95V, -40C to 125C 7
Output Swing From Rail 12 mV RL=2KΩ, 25C 7
Output Swing From Rail 3 mV RL=10KΩ, 25C 7
Output Current Source Iout 140 mA 25C 7
Slew Rate SR 6 V/us 25C 7
Gain-Bandwidth Product GBP 10 MHz 25C 7
Phase Margin PM 62 ° 25C 7
Setting Time, 0.1% ts 0.7 us 25C 7
Overload Recovery Time 3.2 us VIN·Gain≥VS, G=-100, 25C 7
Input Voltage Noise Density en 9.5 nV/√Hz f = 1KHz, 25C 7
Input Voltage Noise Density en 6.5 nV/√Hz f = 10KHz, 25C 7

CAD (KiCad official)

  • Symbol: RS722PXK
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: rs722pxk-etched.step / rs722pxk-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs722pxk.step / rs722pxk.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
rs722pxk.step 122 KB You want the bare part, or you mark your own boards.
rs722pxk-etched.step 1.7 MB You want the part with RS722PXK already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 437 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 (23 pp, sha256 396034a195cebc33, 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