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RS721PXF-Q1

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Jiangsu RUNIC Tech Operational Amplifier, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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RS721PXF-Q1

Jiangsu RUNIC Tech · Operational Amplifier · SOT-23-5

RS721PXF-Q1 from Jiangsu RUNIC Tech, in a SOT-23-5. 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 OUT output Amplifier output, rail-to-rail swing, diode-clamped to supply rails with output current limited to ±200mA.
2 V- power_in Negative (lowest) power supply; single-supply range 2.5V to 5.5V across V+ and V-.
3 +IN input Positive (noninverting) input, rail-to-rail with common-mode range -0.1V to 5.6V at VS=5.5V.
4 -IN input Negative (inverting) input, diode-clamped to supply rails with input current limited to 10mA.
5 V+ power_in Positive (highest) power supply, 2.5V to 5.5V total supply (7V absolute maximum), with a 0.1uF capacitor placed closely across the supply pins.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
Package SOT-23-5
Category Operational Amplifier/Comparator
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 voltage (absolute maximum) VS 7 V VS=(V+)-(V-) 8
Signal input pin voltage -0.5 0.5 V relative to (V-) and (V+): (V-)-0.5 to (V+)+0.5 8
Signal output pin voltage -0.5 0.5 V relative to (V-) and (V+): (V-)-0.5 to (V+)+0.5 8
Signal input pin current -10 10 mA 8
Signal output pin current -200 200 mA 8
Operating temperature range TA -40 125 °C 8
Junction temperature TJ -40 150 °C 8
Storage temperature Tstg -65 150 °C 8
ESD HBM V(ESD) -2000 2000 V Human-Body Model per AEC Q100-002 8
ESD CDM V(ESD) -500 500 V Charged-Device Model per AEC Q100-011 8
Latch-Up LU -100 100 mA per AEC Q100-004 8
Supply voltage, single-supply VS 2.5 5.5 V VS=(V+)-(V-) 8
Supply voltage, dual-supply VS -1.25 2.75 V printed ±1.25 to ±2.75 8
Junction-to-ambient thermal resistance RθJA 273.8 °C/W SOT23-5 9
Junction-to-case(top) thermal resistance RθJC(top) 126.8 °C/W SOT23-5 9
Junction-to-board thermal resistance RθJB 85.9 °C/W SOT23-5 9
Junction-to-top characterization parameter ΨJT 10.9 °C/W SOT23-5 9
Junction-to-board characterization parameter ΨJB 84.9 °C/W SOT23-5 9
Operating Voltage Range VS 2.5 5.5 V 25C 10
Quiescent Current/Amplifier IQ 1.15 1.35 mA VS=±2.5V, Io=0mA, 25C 10
Quiescent Current/Amplifier (Full) IQ 1.85 mA VS=±2.5V, Io=0mA, Full 10
Power-Supply Rejection Ratio PSRR 75 93 dB VS=2.7V to 5.5V, 25C 10
Power-Supply Rejection Ratio (Full) PSRR 70 90 dB VS=2.7V to 5.5V, Full 10
Input Offset Voltage VOS -2.5 0.5 2.5 mV VCM=VS/2, 25C; typ printed ±0.5 10
Input Offset Voltage Average Drift VOS TC 2.6 uV/C Full; typ printed ±2.6 10
Input Bias Current IB 1 10 pA VCM=0V, 25C; typ printed ±1, max ±10 10
Input Bias Current (Full) IB 0.5 nA VCM=0V, Full 10
Input Offset Current IOS 1 10 pA VCM=0V, 25C; typ printed ±1, max ±10 10
Common-Mode Voltage Range VCM -0.1 5.6 V VS=5.5V, 25C 10
Common-Mode Rejection Ratio CMRR 73 90 dB VS=5.5V, VCM=-0.1V to 3.5V, 25C 10
Common-Mode Rejection Ratio (Full) CMRR 70 85 dB VS=5.5V, VCM=-0.1V to 3.5V, Full 10
Common-Mode Rejection Ratio CMRR 60 77 dB VS=5.5V, VCM=-0.1V to 5.6V, 25C 10
Common-Mode Rejection Ratio (Full) CMRR 59 75 dB VS=5.5V, VCM=-0.1V to 5.6V, Full 10
Open-Loop Voltage Gain AOL 110 127 dB RL=10KΩ, Vo=(V-)+0.1V to (V+)-0.1V, 25C 10
Open-Loop Voltage Gain (Full) AOL 94 120 dB RL=10KΩ, Vo=(V-)+0.1V to (V+)-0.1V, Full 10
Output Swing from Rail 10 20 mV VS=±2.5V, RL=10KΩ, 25C 10
Output Short-Circuit Current IOUT 80 150 mA VS=±2.5V, Vo=0V, 25C 10
Capacitive Load Drive CLOAD 100 pF 25C 10
Slew Rate SR 8 V/us G=+1, CL=100pF, 25C 10
Gain-Bandwidth Product GBP 13 MHz 25C 10
Setting Time, 0.1% tS 0.8 us VS=±2.5V, G=+1, CL=100pF, Step=2V, 25C 10
Overload Recovery Time tOR 0.4 us VIN·Gain≥VS, G=-10, 25C 10
Input Voltage Noise En 5 uVPP f = 0.1Hz to 10Hz, VS=±2.5V, 25C 10

CAD (KiCad official)

  • Symbol: RS721PXF-Q1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rs721pxf-q1-etched.step / rs721pxf-q1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs721pxf-q1.step / rs721pxf-q1.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (24 pp, sha256 876d81dc7861b410, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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