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Contents

README

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TS321AILT

STMicroelectronics · Operational Amplifier · SOT-23-5

TS321AILT from STMicroelectronics, 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 Output output Op-amp output. Delivers up to ~40 mA source / 20 mA sink (Vcc = 15 V); short-circuit current to ground ~40-60 mA. High-level output reaches VCC+ − 1.5 V (typ) and low-level output ≤ 15 mV into 10 kΩ. Output is stable with high capacitive loads.
2 VCC- power_in Negative supply / ground pin. Tied to ground in single-supply operation (3 to 30 V on VCC+) or to a negative rail down to −15 V in dual-supply operation.
3 Non-inverting input input Non-inverting (+) input to the op-amp. Input common-mode range includes VCC- (ground in single-supply use) and extends up to (VCC+ − 1.5 V). Input bias current ~20 nA typ; differential input voltage rating ±32 V.
4 Inverting input input Inverting (−) input to the op-amp. Same electrical properties as the non-inverting input: Vicm includes ground, Ib ≈ 20 nA typ, Vid rating ±32 V. Input offset voltage ≤ 2 mV max on the TS321A grade.
5 VCC+ power_in Positive supply pin. Operating range 3 to 30 V single-supply (or up to ±15 V dual-supply); absolute max 32 V (±16 V dual). Typical supply current 500 µA at VCC+ = 5 V, 600 µA at 30 V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TS321AILT
  • TS321ILT

CAD (KiCad official)

  • Symbol: TS321AILT
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: STMicroelectronics datasheet (15 pp, sha256 1d743613040dad8e, 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