component

LMV321BRTZ

Public Unreviewed

by Ray

HTCSEMI Operational Amplifier, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmplmv321brtz
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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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LMV321BRTZ

HTCSEMI · Operational Amplifier · SOT-23-5

LMV321BRTZ from HTCSEMI, in a SOT-23-5. 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 INP input Non-inverting analog input of the amplifier. Input voltage range extends from 0 V to VDD (rail-to-rail input).
2 GND power_in Ground / negative supply. Connect to the most negative supply rail; all GND pads are bonded on die.
3 INN input Inverting analog input of the amplifier. Same voltage range as INP (0 V to VDD).
4 OUT output Rail-to-rail amplifier output. Voltage swing extends to within millivolts of each supply rail (typ VCC-10 mV high, 65 mV low with 10 kΩ load at 5 V).
5 VDD power_in Positive power supply pin. Operates from 2.7 V to 5.5 V (absolute max 5.5 V). Typical supply current 330 μA.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOT-23-5
Category Op-amp/Cmp
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • LMV321BRTZ

CAD (KiCad official)

  • Symbol: LMV321BRTZ
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
lmv321brtz.step 85 KB You want the bare part, or you mark your own boards.
lmv321brtz-etched.step 1.7 MB You want the part with LMV321BRTZ already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 428 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: HTCSEMI datasheet (9 pp, sha256 1991cce11fe825ee, retrieved 2026-08-17, tier: lcsc)
  • 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