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OPA503ASOT235

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by adom

analogysemi Operational Amplifier, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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OPA503ASOT235

analogysemi · Operational Amplifier · SOT23-5

OPA503ASOT235 from analogysemi, in a SOT23-5. 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, swinging to within 2 mV of the rails at VS = 1.8V.
2 V- power_in Negative (lowest) power supply.
3 +IN input Positive (non-inverting) input, rail-to-rail with about 0.1 pA bias current.
4 -IN input Negative (inverting) input, rail-to-rail with about 0.1 pA bias current.
5 V+ power_in Positive (highest) power supply, 1.6V to 5.5V operating range relative to V-, with a 100 nF capacitor placed close to V+/V-.

Key specifications

Parameter Value
Manufacturer analogysemi
Package SOT23-5
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 -0.3 6 V 4
Signal input pins common-mode voltage -0.3 0.3 V (V-), 0.3 to (V+) + 0.3 4
Signal input pins differential voltage -0.3 0.3 V (V-), 0.3 to (V+) + 0.3 4
Signal input pins current -10 10 mA 4
Operating temperature TA -40 125 °C 4
Junction temperature TJ 150 °C 4
Storage temperature Tstg -65 150 °C 4
ESD HBM V(ESD) -6000 6000 V Human-body model, ANSI/ESDA/JEDEC JS-001 4
ESD CDM V(ESD) -2000 2000 V Charged-device model, JESD22-C101 4
Operating voltage range 1.6 5.5 V 5
Specified temperature range -40 125 °C 5
Junction-to-ambient thermal resistance RθJA 168 °C/W SOT23-5 5
Junction-to-board thermal resistance RθJB 39 °C/W SOT23-5 5
Junction-to-top characterization parameter ψJT 10 °C/W SOT23-5 5
Junction-to-board characterization parameter ψJB 36 °C/W SOT23-5 5
Junction-to-case (top) thermal resistance RθJC(top) 103 °C/W SOT23-5 5
Junction-to-case (bottom) thermal resistance RθJC(bot) 66 °C/W SOT23-5 5
Input offset voltage VOS 52 210 µV VS = 1.8V, 3.3V, and 5V, VCM = VS /2 or VCM = (V+), 0.9V 6
Power-supply rejection ratio PSRR 15 93 µV/V VS = 1.8V to 5V, VCM = VDD/2 6
Common-mode rejection ratio CMRR 77 94 dB (V-) ≤ VCM ≤ (V+), VS = 5V 6
Input bias current IB -100 100 fA VS = 1.8V, VCM = VS / 2 6
Input offset current IOS -100 100 fA VS = 1.8V, VCM = VS / 2 6
Voltage output swing from positive rail VOH 2 10 mV VS = 1.8V, RL = 100kΩ to (V+) / 2 6
Voltage output swing from negative rail VOL 1.5 10 mV VS = 1.8V, RL = 100kΩ to (V+) / 2 6
Quiescent current IQ 570 705 nA VCM = V-, IO = 0, VS = 3.3V 6
Input offset drift ΔVOS/ΔT 1.2 µV/°C VCM = V-, TA = -40°C to 125°C 6
Common-mode voltage range VCM 0 V upper limit printed as VDD 6
Open-loop voltage gain AOL 120 dB (V-) + 0.3V ≤ VO ≤ (V+), 0.3V, RL = 100kΩ 6
Short-circuit current ISC 10 mA VS = 3.3V, short to VS / 2 6
Gain-bandwidth product GBP 11 kHz CL = 20pF, RL = 10MΩ, VS = 5V 6
Slew rate rising SR 3 V/ms G = 1, Rising Edge, CL = 20pF, VS = 5V 6
Slew rate falling SR 6 V/ms G = 1, Falling Edge, CL = 20pF, VS = 5V 6
Input voltage noise En 9.1 μVpp ƒ = 0.1Hz to 10Hz 6
Input voltage noise density en 214 nV/√Hz ƒ = 100Hz 6
Input voltage noise density en 238 nV/√Hz ƒ = 1kHz 6
Differential input impedance 3.3 pF 6
Common-mode input impedance 7.2 pF 6

CAD (KiCad official)

  • Symbol: OPA503ASOT235
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)
  • 3D model files: opa503asot235-etched.step / opa503asot235-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa503asot235.step / opa503asot235.glb are the bare package body.

Provenance

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

  • Datasheet: analogysemi datasheet (18 pp, sha256 074f06d45b89ff28, retrieved 2026-10-27, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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