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LM324QT

Public Made by Adom

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STMicroelectronics Operational Amplifier, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Datasheet

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Contents

README

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LM324QT

STMicroelectronics · Operational Amplifier · VQFN-16-EP(3x3)

LM324QT from STMicroelectronics, in a VQFN-16-EP(3x3). 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 IN1+ input Non-inverting input of amplifier 1; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ.
2 VCC+ power_in Positive supply rail; single supply 3 V to 30 V, dual ±1.5 V to ±15 V; absolute maximum 32 V.
3 NC unconnected No internal connection.
4 IN2+ input Non-inverting input of amplifier 2; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ.
5 IN2- input Inverting input of amplifier 2; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C.
6 OUT2 output Output of amplifier 2; VOH min 3.5 V at VCC+=5 V, RL=2 kΩ; output source current 20 mA typ, sink 10 mA typ at Vo=2 V.
7 OUT3 output Output of amplifier 3; VOH min 3.5 V at VCC+=5 V, RL=2 kΩ; output source current 20 mA typ, sink 10 mA typ at Vo=2 V.
8 IN3- input Inverting input of amplifier 3; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C.
9 IN3+ input Non-inverting input of amplifier 3; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ.
10 NC unconnected No internal connection.
11 VCC- power_in Negative supply rail / ground reference; dual supply down to −15 V; connect to ground for single-supply operation.
12 IN4+ input Non-inverting input of amplifier 4; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ.
13 IN4- input Inverting input of amplifier 4; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C.
14 OUT4 output Output of amplifier 4; VOH min 3.5 V at VCC+=5 V, RL=2 kΩ; output source current 20 mA typ, sink 10 mA typ at Vo=2 V.
15 OUT1 output Output of amplifier 1; VOH min 3.5 V at VCC+=5 V, RL=2 kΩ; output source current 20 mA typ, sink 10 mA typ at Vo=2 V.
16 IN1- input Inverting input of amplifier 1; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C.
17 EP passive Exposed thermal pad; datasheet states it can be connected to VCC− or left floating; Rthja 45 °C/W, Rthjc 14 °C/W for QFN16 3x3.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package VQFN-16-EP(3x3)
Category Amplifiers/Comparators
Pins 17

CAD (KiCad official)

  • Symbol: LM324QT
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: lm324qt-etched.step / lm324qt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm324qt.step / lm324qt.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (21 pp, sha256 7d935f64f066d5e4, retrieved 2026-09-26, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-opus-4-7 (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