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RS321BPXC5

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Jiangsu RUNIC Tech Operational Amplifier, SC70-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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RS321BPXC5

Jiangsu RUNIC Tech · Operational Amplifier · SC70-5

RS321BPXC5 from Jiangsu RUNIC Tech, in a SC70-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 +IN input Positive (noninverting) input; the common-mode voltage range is -0.2 V to 5.7 V when VS = 5.5 V, and inputs that swing more than 0.5 V beyond the supply rails should be current-limited to 10 mA or less.
2 V- power_in Negative (lowest) power supply; VS = (V+) - (V-) must stay within 2.1 V to 5.5 V single-supply (or ±1.05 V to ±2.75 V dual-supply), and the 7 V absolute maximum must not be exceeded.
3 -IN input Negative (inverting) input; inputs that swing more than 0.5 V beyond the supply rails should be current-limited to 10 mA or less.
4 OUT output Output; outputs that swing more than 0.5 V beyond the supply rails should be current-limited to ±100 mA or less, and output short-circuit to ground is continuous for one amplifier per package.
5 V+ power_in Positive (highest) power supply; VS = (V+) - (V-) must stay within 2.1 V to 5.5 V single-supply (or ±1.05 V to ±2.75 V dual-supply), and the 7 V absolute maximum must not be exceeded.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SC70-5
Category Amplifiers/Comparators
Pins 5

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 Operating Voltage Range (VS) VS 2.1 5.5 V 25C 5
Common-Mode Voltage Range Vcm -0.2 5.7 V VS=5.5V, 25C 5
Input Offset Voltage Vos -0.5 0.2 0.5 mV 25C; printed as -0.5 ±0.2 0.5 5
Power-Supply Rejection Ratio PSRR 72 90 dB VS=2.1V to 5.5V, VCM=(V-)+0.5V, 25C 5
Power-Supply Rejection Ratio PSRR 64 dB VS=2.1V to 5.5V, VCM=(V-)+0.5V, -40C to 125C 5
Common-Mode Rejection Ratio CMRR 71 92 dB VS=5.5V, VCM=-0.2V to 4V, 25C 5
Common-Mode Rejection Ratio CMRR 65 dB VS=5.5V, VCM=-0.2V to 4V, -40C to 125C 5
Common-Mode Rejection Ratio CMRR 61 83 dB VS=5.5V, VCM=-0.2V to 5.7V, 25C 5
Common-Mode Rejection Ratio CMRR 57 dB VS=5.5V, VCM=-0.2V to 5.7V, -40C to 125C 5
Open-Loop Voltage Gain AOL 93 105 dB RL=2KΩ, Vo=0.15V to 4.85V, 25C 5
Open-Loop Voltage Gain AOL 83 dB RL=2KΩ, Vo=0.15V to 4.85V, -40C to 125C 5
Open-Loop Voltage Gain AOL 100 110 dB RL=10KΩ, Vo=0.05V to 4.95V, 25C 5
Open-Loop Voltage Gain AOL 92 dB RL=10KΩ, Vo=0.05V to 4.95V, -40C to 125C 5
Quiescent Current IQ 85 150 uA 25C 5
Input Bias Current IB 1 10 pA 25C 5
Input Offset Current Ios 1 10 pA 25C 5
Supply Voltage Absolute Maximum VS 7 V Supply, VS=(V+)-(V-) 3
Signal Input Pin Current -10 10 mA Signal input pin 3
Signal Output Pin Current -140 140 mA Signal output pin 3
Operating Free-Air Temperature Range TA -40 125 °C Operating range 3
Junction Temperature TJ 150 °C Junction 3
Storage Temperature Tstg -65 150 °C Storage 3
Electrostatic Discharge, Human-Body Model V(ESD) 3000 V Human-body model (HBM), single value printed 3
Electrostatic Discharge, Machine Model V(ESD) 200 V Machine Model (MM), single value printed 3
Supply Voltage, Single-Supply VS 2.1 5.5 V Single-supply 3
Supply Voltage, Dual-Supply VS 1.05 2.75 V Dual supply, per rail; printed ±1.05 (MIN) and ±2.75 (MAX) 3
Specified Temperature -40 125 °C Specified temperature 3
Turn-on Time tON 25 us VS=5V 5
Input Offset Voltage Average Drift VosTc 2 uV/C -40C to 125C 5
Output Swing from Rail 25 mV RL=2KΩ, 25C 5
Output Swing from Rail 8 mV RL=10KΩ, 25C 5
Output Short-Circuit Current Iout 110 mA 25C 5
Slew Rate SR 0.5 V/us CL=100pF, G=1, 25C 5
Gain-Bandwidth Product GBP 1.1 MHz 25C 5
Phase Margin PM 64 ° 25C 5
Setting Time, 0.1% ts 6.5 us CL=100pF, VS=5V, 2-V step, G=1 5
Overload Recovery Time 4 us VIN·Gain≥VS 5
Input Voltage Noise Density en 22 nV/√Hz f = 1KHz, 25C 5
Input Voltage Noise Density en 20 nV/√Hz f = 10KHz, 25C 5
Junction-to-Ambient Thermal Resistance RϴJA 214.7 °C/W SC70-5 package 3
Junction-to-Case (Top) Thermal Resistance RϴJC(top) 127.1 °C/W SC70-5 package 3
Junction-to-Board Thermal Resistance RϴJB 60 °C/W SC70-5 package 3
Junction-to-Top Characterization Parameter ѰJT 33.4 °C/W SC70-5 package 3
Junction-to-Board Characterization Parameter ѰJB 59.8 °C/W SC70-5 package 3

CAD (KiCad official)

  • Symbol: RS321BPXC5
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SC70-5 (KiCad packages3D, STEP)
  • 3D model files: rs321bpxc5-etched.step / rs321bpxc5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs321bpxc5.step / rs321bpxc5.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (13 pp, sha256 694691b54776f815, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF