component
LM324QT
Public Made by Adomby adom
STMicroelectronics Operational Amplifier, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+53@@ -0,0 +1,53 @@+# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881696217575424) (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](docs/lm324qt-datasheet.pdf)
page.jsonadded+212@@ -0,0 +1,212 @@+{+ "slug": "lm324qt",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics Operational Amplifier, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "amplifiers-comparators",+ "lm324qt",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm324qt.kicad_sym",+ "lm324qt.kicad_mod",+ "lm324qt.glb",+ "lm324qt.step",+ "lm324qt.lbr",+ "docs/hero.png",+ "docs/lm324qt-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM324QT",+ "manufacturer": "STMicroelectronics",+ "package": "VQFN-16-EP(3x3)",+ "pin_count": 17,+ "category": "Amplifiers/Comparators",+ "subcategory": "Operational Amplifier",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881696217575424",+ "parts": {+ "symbol": "lm324qt.kicad_sym",+ "footprint": "lm324qt.kicad_mod",+ "model_3d": "lm324qt-etched.glb",+ "model_3d_plain": "lm324qt.glb",+ "model_3d_step": "lm324qt-etched.step",+ "model_3d_step_plain": "lm324qt.step",+ "lbr": "lm324qt.lbr"+ },+ "distributor_links": {+ "lcsc": "C183029",+ "digikey": "497-12005-2-ND",+ "mouser": "511-LM324QT"+ },+ "distributor_check": {+ "checked_at": "2026-09-26T19:55:08Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-12005-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "511-LM324QT",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "IN1+",+ "type": "input",+ "description": "Non-inverting input of amplifier 1; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ."+ },+ {+ "number": "2",+ "name": "VCC+",+ "type": "power_in",+ "description": "Positive supply rail; single supply 3 V to 30 V, dual ±1.5 V to ±15 V; absolute maximum 32 V."+ },+ {+ "number": "3",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection."+ },+ {+ "number": "4",+ "name": "IN2+",+ "type": "input",+ "description": "Non-inverting input of amplifier 2; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ."+ },+ {+ "number": "5",+ "name": "IN2-",+ "type": "input",+ "description": "Inverting input of amplifier 2; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C."+ },+ {+ "number": "6",+ "name": "OUT2",+ "type": "output",+ "description": "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."+ },+ {+ "number": "7",+ "name": "OUT3",+ "type": "output",+ "description": "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."+ },+ {+ "number": "8",+ "name": "IN3-",+ "type": "input",+ "description": "Inverting input of amplifier 3; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C."+ },+ {+ "number": "9",+ "name": "IN3+",+ "type": "input",+ "description": "Non-inverting input of amplifier 3; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ."+ },+ {+ "number": "10",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection."+ },+ {+ "number": "11",+ "name": "VCC-",+ "type": "power_in",+ "description": "Negative supply rail / ground reference; dual supply down to −15 V; connect to ground for single-supply operation."+ },+ {+ "number": "12",+ "name": "IN4+",+ "type": "input",+ "description": "Non-inverting input of amplifier 4; common-mode range (VCC−)−0.1 V to (VCC+)−1 V, input bias current 20 nA typ."+ },+ {+ "number": "13",+ "name": "IN4-",+ "type": "input",+ "description": "Inverting input of amplifier 4; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C."+ },+ {+ "number": "14",+ "name": "OUT4",+ "type": "output",+ "description": "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."+ },+ {+ "number": "15",+ "name": "OUT1",+ "type": "output",+ "description": "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."+ },+ {+ "number": "16",+ "name": "IN1-",+ "type": "input",+ "description": "Inverting input of amplifier 1; input offset voltage max 7 mV (LM324), offset current max 20 nA at 25 °C."+ },+ {+ "number": "17",+ "name": "EP",+ "type": "passive",+ "description": "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."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-sonnet-4-6",+ "primary_mode": "text+vision",+ "consensus_model": "claude-opus-4-7",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The datasheet does not print an explicit pad number for the exposed pad. Number '17' is assigned by ; Pins 3 and 10 are labelled NC in the QFN16 3x3 top-view diagram. The datasheet does not state whethe",+ "vision extraction: provenance cannot be text-verified; needs consensus"+ ],+ "pages_sent": 21,+ "cost_usd": 0.4614,+ "at": "2026-09-26T19:54:52"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881696217575424",+ "pages": 21,+ "sha256": "7d935f64f066d5e4",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}