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APX321SEG-7

Public Made by Adom

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Diodes Incorporated Operational Amplifier, SOT-353. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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APX321SEG-7

Diodes Incorporated · Operational Amplifier · SOT-353

APX321SEG-7 from Diodes Incorporated, in a SOT-353. 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 Non-inverting input; common-mode range is 0 to V+ -0.2V.
2 V- power_in Negative supply (ground in single-supply use, V-=0V); supply range V+ to V- is 2.5V to 5.5V.
3 IN- input Inverting input; differential input voltage up to ±supply voltage.
4 OUT output Rail-to-rail amplifier output swinging to within 10mV of either rail at 10kΩ load.
5 V+ power_in Positive supply; 2.5V to 5.5V operating, 5.5V absolute maximum.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-353
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 voltage (operating) V+ -V- 2.5 5.5 V 3
Operating ambient temperature range TA -40 85 °C 3
Supply voltage (absolute maximum) V+ -V- 5.5 V 3
Storage temperature TST -65 150 °C 3
Maximum junction temperature TJ 150 °C 3
ESD HBM protection (APX321) ESD 4000 V Human Body Model 3
ESD MM protection (APX321) ESD 350 V Machine Model 3
Input offset voltage (2.7V) VOS 1.7 7 mV V+ = 2.7V, V- = 0V, VCM = 1.0V, VO = V+/2, RL > 1 MΩ, TA = 25°C 4
Input offset current (2.7V) IOS 5 50 nA V+ = 2.7V, V- = 0V, VCM = 1.0V, VO = V+/2, RL > 1 MΩ, TA = 25°C 4
Common mode rejection ratio (2.7V) CMRR 50 63 dB 0V ≤ VCM ≤ 2.4V 4
Power supply rejection ratio (2.7V) PSRR 50 60 dB 2.7V ≤ V+ ≤ 5V, VO = 1V 4
Input common-mode voltage range (2.7V) VCMR 0 2.5 V For CMRR ≥ 50dB 4
Output swing, low side (2.7V) VO 20 100 mV RL = 10 kΩ to 1.35V 4
Supply current, single amplifier (2.7V) IS 110 140 µA Single amplifier 4
Gain-bandwidth product (2.7V) GBWP 1 MHz CL = 200 pF 4
Phase margin (2.7V) Φm 60 Deg 4
Gain margin (2.7V) Gm 10 dB 4
Input offset voltage (5V) VOS 1.7 7 mV V+ = 5V, V- = 0V, VCM = 2.0V, VO = V+/2, RL > 1 MΩ, TA = 25°C 5
Input offset voltage (5V, temperature extremes) VOS 9 mV V+ = 5V, V- = 0V, VCM = 2.0V, VO = V+/2, RL > 1 MΩ; boldface limit at temperature extremes 5
Input offset voltage average drift (5V) TCVOS 5 µV/°C 5
Input bias current (5V) IB 15 250 nA V+ = 5V, V- = 0V, VCM = 2.0V, VO = V+/2, RL > 1 MΩ, TA = 25°C 5
Input bias current (5V, temperature extremes) IB 500 nA V+ = 5V, V- = 0V, VCM = 2.0V, VO = V+/2, RL > 1 MΩ; boldface limit at temperature extremes 5
Input offset current (5V) IOS 5 50 nA V+ = 5V, V- = 0V, VCM = 2.0V, VO = V+/2, RL > 1 MΩ, TA = 25°C 5
Input offset current (5V, temperature extremes) IOS 150 nA V+ = 5V, V- = 0V, VCM = 2.0V, VO = V+/2, RL > 1 MΩ; boldface limit at temperature extremes 5
Common mode rejection ratio (5V) CMRR 50 65 dB 0V ≤ VCM ≤ 4.7V 5
Power supply rejection ratio (5V) PSRR 50 60 dB 2.7V ≤ V+ ≤ 5V, VO = 1V, VCM = 1V 5
Input common-mode voltage range (5V) VCMR 0 4.8 V For CMRR ≥ 50dB 5
Large signal voltage gain (5V) AV 15 100 V/mV RL = 2 kΩ (Note 11) 5
Large signal voltage gain (5V, temperature extremes) AV 10 V/mV RL = 2 kΩ (Note 11); boldface limit at temperature extremes 5
Output swing, low side (5V, RL = 2 kΩ) VO 50 300 400 mV RL = 2 kΩ to 2.5V 5
Output swing, low side (5V, RL = 10 kΩ) VO 10 180 280 mV RL = 10 kΩ to 2.5V 5
Output short circuit current, sourcing (5V) IO 5 60 mA Sourcing, VO = 0V 5
Output short circuit current, sinking (5V) IO 10 90 mA Sinking, VO = 5V 5
Supply current, single amplifier (5V) IS 110 140 µA Single amplifier 5
Thermal resistance junction-to-ambient, SOT353 θJA 330 °C/W SOT353 (Note 12): typical, soldered to PC board in still air 5
Slew rate (5V) SR 1 V/µs Voltage follower, 3V step input (Note 13) 6
Gain-bandwidth product (5V) GBWP 1 MHz CL = 200 pF 6
Phase margin (5V) Φm 60 Deg 6
Gain margin (5V) Gm 10 dB 6

CAD (KiCad official)

  • Symbol: APX321SEG-7
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SOT-353 (KiCad packages3D, STEP)
  • 3D model files: apx321seg-7-etched.step / apx321seg-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); apx321seg-7.step / apx321seg-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (18 pp, sha256 6f4400af0052c530, 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