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LTC321XT5

Public Made by Adom

by adom

Linearin Operational Amplifier, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LTC321XT5

Linearin · Operational Amplifier · SOT-23-5L

LTC321XT5 from Linearin, in a SOT-23-5L. 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.
2 -VS power_in Negative power supply; the supply range is 1.8 V to 5.5 V (VS+ to VS-), and VS+ to VS- must not exceed 10 V.
3 +IN input Non-inverting input of the amplifier; the voltage range is from (VS- - 0.1 V) to (VS+ + 0.1 V).
4 -IN input Inverting input of the amplifier; the voltage range is from (VS- - 0.1 V) to (VS+ + 0.1 V).
5 +VS power_in Positive power supply; the supply range is 1.8 V to 5.5 V, and VS+ to VS- must not exceed 10 V.

Key specifications

Parameter Value
Manufacturer Linearin
Package SOT-23-5L
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
Input offset voltage VOS -3 0.7 3 mV 3
Offset voltage drift VOS TC 1 3.5 μV/℃ TA = −40 to +125 ℃ 3
Power supply rejection ratio PSRR 80 110 dB VS = 2.0 to 5.5 V, VCM < VS+ − 2V 3
Power supply rejection ratio PSRR 75 dB TA = −40 to +125 ℃ 3
Input bias current IB 5 50 pA 3
Input bias current IB 200 pA TA = −40 to +85 ℃ 3
Input bias current IB 2000 pA TA = −40 to +125 ℃ 3
Input offset current IOS 10 50 pA 3
Common-mode rejection ratio CMRR 70 83 dB VS = 5.5 V, VCM = −0.1 to 5.6 V 3
Common-mode rejection ratio CMRR 65 dB VCM = 0 to 5.3 V, TA = −40 to +125 ℃ 3
Common-mode rejection ratio CMRR 65 77 dB VS = 2.0 V, VCM = −0.1 to 2.1 V 3
Common-mode rejection ratio CMRR 60 dB VCM = 0 to 1.8 V, TA = −40 to +125 ℃ 3
Open-loop voltage gain AVOL 90 105 dB RL = 50 kΩ, VO = 0.05 to 3.5 V 3
Open-loop voltage gain AVOL 85 dB TA = −40 to +125 ℃ 3
Open-loop voltage gain AVOL 85 100 dB RL = 2 kΩ, VO = 0.15 to 3.5 V 3
Open-loop voltage gain AVOL 80 dB TA = −40 to +125 ℃ 3
Operating supply voltage VS 1.8 5.5 V 4
Quiescent current (per amplifier) IQ 85 120 μA 4
Quiescent current (per amplifier) IQ 150 μA TA = −40 to +125 ℃ 4
Operating temperature range TA -40 125 ℃ 4
Storage temperature range Tstg -65 150 ℃ 2
Junction temperature TJ 150 ℃ 2
Supply voltage VS+ to VS- 10 V 2
Signal input terminals: current -10 10 mA 2
Lead temperature range (soldering) 260 ℃ Soldering 10 sec 2
Electrostatic discharge voltage, human body model -5000 5000 V Human body model (HBM), per MIL-STD-883J / Method 3015.9 2
Electrostatic discharge voltage, charged device model -2000 2000 V Charged device model (CDM), per ESDA/JEDEC JS-002-2014 2
Electrostatic discharge voltage, machine model -250 250 V Machine model (MM), per JESD22-A115C 2
Package thermal resistance, junction to ambient θJA 190 ℃/W SOT23-5L package 4

CAD (KiCad official)

  • Symbol: LTC321XT5
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: ltc321xt5-etched.step / ltc321xt5-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc321xt5.step / ltc321xt5.glb are the bare package body.

Provenance

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

  • Datasheet: Linearin datasheet (19 pp, sha256 a403a26b7030c634, 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