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Contents

README

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LMV321SEG-7

Diodes Incorporated · Operational Amplifier · SOT-353

LMV321SEG-7 from Diodes Incorporated, in a SOT-353. 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 IN+ input Non-inverting analog input. Common-mode input voltage range extends from V- - 0.2V up to V+ - 0.8V. Rail-to-rail on the low side (includes ground).
2 V- power_in Negative supply rail / ground. Total supply (V+ - V-) must be 2.7V to 5.5V. Typically tied to GND in single-supply operation.
3 IN- input Inverting analog input. Differential input voltage limited to ±(V+ - V-). Same common-mode range as IN+.
4 OUT output Op-amp output. Rail-to-rail swing: within ~10 mV of V- and V+ with a 10 kΩ load. Output short-circuit current typ. 60 mA sourcing, 90 mA sinking at 5V supply.
5 V+ power_in Positive supply rail. 2.7V to 5.5V relative to V-. Bypass with a local ceramic capacitor close to the pin.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-353
Category Op-amp/Cmp
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LMV321SEG-7
  • LMV321SEG-7WG-7

CAD (KiCad official)

  • Symbol: LMV321SEG-7
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SOT-353 (KiCad packages3D, STEP)
  • 3D model files: lmv321seg-7-etched.step / lmv321seg-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmv321seg-7.step / lmv321seg-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (15 pp, sha256 088dfaaf7fb213fb, retrieved 2026-08-17, tier: manufacturer)
  • 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