# LM324KN

**Texas Instruments** · Pre-ordered Chips · PDIP-14

LM324KN from Texas Instruments, in a PDIP-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 | Output of op amp 1 (Figure 5-1 and Table 5-1 map this pin to the N/PDIP package). |
| 2 | 1IN- | input | Inverting (negative) input of op amp 1; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 3 | 1IN+ | input | Non-inverting (positive) input of op amp 1; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 4 | VCC+ | power_in | Positive (highest) supply pin; recommended VCC for LM324xx is 3 V to 30 V, absolute maximum 32 V (Sections 6.1 and 6.3, page 5). |
| 5 | 2IN+ | input | Non-inverting (positive) input of op amp 2; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 6 | 2IN- | input | Inverting (negative) input of op amp 2; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 7 | 2OUT | output | Output of op amp 2. |
| 8 | 3OUT | output | Output of op amp 3. |
| 9 | 3IN- | input | Inverting (negative) input of op amp 3; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 10 | 3IN+ | input | Non-inverting (positive) input of op amp 3; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 11 | VCC- | power_in | Negative (lowest) supply pin, or ground for single-supply operation (Table 5-1, page 4). |
| 12 | 4IN+ | input | Non-inverting (positive) input of op amp 4; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 13 | 4IN- | input | Inverting (negative) input of op amp 4; recommended common-mode voltage is 0 V to VCC - 2 V (Section 6.3, page 5). |
| 14 | 4OUT | output | Output of op amp 4. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-14 |
| Category | Interface ICs |
| Pins | 14 |

## 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 | VIO |  | 3 | 7 | mV | VCC = 5 V to max, VIC = VICRmin, VO = 1.4 V, 25°C | 11 |
| Input offset voltage (full range) | VIO |  |  | 9 | mV | VCC = 5 V to max, VIC = VICRmin, VO = 1.4 V, full range (0 to 70 °C) | 11 |
| Input offset current | IIO |  | 2 | 50 | nA | VO = 1.4 V, 25°C | 11 |
| Input offset current (full range) | IIO |  |  | 150 | nA | VO = 1.4 V, full range | 11 |
| Input bias current | IIB |  | -20 | -250 | nA | VO = 1.4 V, 25°C | 11 |
| Input bias current (full range) | IIB |  |  | -500 | nA | VO = 1.4 V, full range | 11 |
| Common-mode input voltage range (25°C) | VICR | 0 |  |  | V | VCC = 5 V to max, 25°C; upper limit printed as VCC, 1.5 V (not numeric) | 11 |
| Common-mode input voltage range (full range) | VICR | 0 |  |  | V | VCC = 5 V to max, full range; upper limit printed as VCC, 2 V (not numeric) | 11 |
| High-level output voltage | VOH | 26 |  |  | V | VCC = max, RL = 2 kΩ, full range | 11 |
| High-level output voltage | VOH | 27 | 28 |  | V | VCC = max, RL ≥ 10 kΩ, full range | 11 |
| Low-level output voltage | VOL |  | 5 | 20 | mV | RL ≤ 10 kΩ, full range | 11 |
| Large-signal differential voltage gain | AVD | 25 | 100 |  | V/mV | VCC+ = 15 V, VO = 1 V to 11 V, RL ≥ 2 kΩ, 25°C | 11 |
| Large-signal differential voltage gain (full range) | AVD | 15 |  |  | V/mV | VCC+ = 15 V, VO = 1 V to 11 V, RL ≥ 2 kΩ, full range | 11 |
| Common-mode rejection ratio | CMRR | 65 | 80 |  | dB | VIC = VICRmin, 25°C | 11 |
| Supply voltage rejection ratio | kSVR | 65 | 100 |  | dB | ΔVCC/ΔVIO, 25°C | 11 |
| Output sink current | IO | -20 | -30 | -60 | mA | VCC = 15 V, VID = 1 V, VO = 0, 25°C | 11 |
| Output sink current (full range) | IO | -10 |  |  | mA | VCC = 15 V, VID = 1 V, VO = 0, full range | 11 |
| Output source current | IO | 10 | 20 |  | mA | VCC = 15 V, VID = -1 V, VO = 15 V, 25°C | 11 |
| Output source current (full range) | IO | 5 |  |  | mA | VCC = 15 V, VID = -1 V, VO = 15 V, full range | 11 |
| Output current |  | 12 | 30 |  | μA | VID = -1 V, VO = 200 mV, 25°C | 11 |
| Short-circuit output current | IOS | -60 | 40 | 60 | mA | VCC = 5 V, VCC- = -5 V, VO = 0, 25°C; printed ±40 typ, ±60 max | 11 |
| Supply current (4 amplifiers) | ICC |  |  | 1.2 | mA | VO = 2.5 V, no load, full range | 11 |
| Supply current (4 amplifiers) | ICC |  |  | 3 | mA | VCC = max, VO = 0.5 VCC, no load, full range | 11 |
| Junction-to-ambient thermal resistance (N, PDIP-14) | RθJA |  | 80 |  | °C/W | Junction to ambient, N (PDIP) 14-pin package | 6 |

## CAD (KiCad official)

- Symbol: `LM324KN`
- Footprint: `Package_DIP:DIP-14_W7.62mm`
- 3D model: PDIP-14 (KiCad packages3D, STEP)
- 3D model files: `lm324kn-etched.step` / `lm324kn-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm324kn.step` / `lm324kn.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/lit/ds/symlink/lm324kn.pdf) (52 pp, sha256 `cbdad41dc394f598`, retrieved 2026-10-29, tier: manufacturer)
- **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-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](docs/lm324kn-datasheet.pdf)