# LM324N

**Texas Instruments** · Operational Amplifier · DIP-14

LM324N from Texas Instruments, in a DIP-14. 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 | 1OUT | output | First operational amplifier output |
| 2 | 1IN- | input | First stage inverting input with high impedance 2MΩ parallel 0.1pF |
| 3 | 1IN+ | input | First stage non-inverting input with high impedance 2MΩ parallel 0.1pF, common mode voltage range V- to (V+)-1.5V |
| 4 | VCC+ | power_in | Positive supply voltage, operating range 3V to 30V for LM324 variants |
| 5 | 2IN+ | input | Second stage non-inverting input with high impedance 2MΩ parallel 0.1pF, common mode voltage range V- to (V+)-1.5V |
| 6 | 2IN- | input | Second stage inverting input with high impedance 2MΩ parallel 0.1pF |
| 7 | 2OUT | output | Second operational amplifier output |
| 8 | 3OUT | output | Third operational amplifier output |
| 9 | 3IN- | input | Third stage inverting input with high impedance 2MΩ parallel 0.1pF |
| 10 | 3IN+ | input | Third stage non-inverting input with high impedance 2MΩ parallel 0.1pF, common mode voltage range V- to (V+)-1.5V |
| 11 | VCC- | power_in | Negative supply voltage or ground for single-supply operation, reference point for all voltage measurements |
| 12 | 4IN+ | input | Fourth stage non-inverting input with high impedance 2MΩ parallel 0.1pF, common mode voltage range V- to (V+)-1.5V |
| 13 | 4IN- | input | Fourth stage inverting input with high impedance 2MΩ parallel 0.1pF |
| 14 | 4OUT | output | Fourth operational amplifier output |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DIP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `LM324N`
- Footprint: `Package_DIP:DIP-14_W7.62mm`
- 3D model: DIP-14 (KiCad packages3D, STEP)
- 3D model files: `lm324n-etched.step` / `lm324n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm324n.step` / `lm324n.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm324) (65 pp, sha256 `f917efd84f8c9582`, retrieved 2026-10-03, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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](docs/lm324n-datasheet.pdf)