# LF444CN

**Texas Instruments** · FET Input Amplifiers · DIP-14

LF444CN 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 | OUT1 | output | Output of amplifier 1; drives a 10 kΩ load to ±10V over the full temperature range. |
| 2 | IN1- | input | Inverting input of amplifier 1 (JFET input); must not exceed the negative supply. |
| 3 | IN1+ | input | Non-inverting input of amplifier 1 (JFET input); must not exceed the negative supply. |
| 4 | V+ | power_in | Positive supply; absolute maximum supply voltage is ±18V for the LF444, and the amplifiers operate with supplies down to ±3.0V. |
| 5 | IN2+ | input | Non-inverting input of amplifier 2 (JFET input); must not exceed the negative supply. |
| 6 | IN2- | input | Inverting input of amplifier 2 (JFET input); must not exceed the negative supply. |
| 7 | OUT2 | output | Output of amplifier 2; may be shorted to ground indefinitely, but not more than one output at once. |
| 8 | OUT3 | output | Output of amplifier 3; may be shorted to ground indefinitely, but not more than one output at once. |
| 9 | IN3- | input | Inverting input of amplifier 3 (JFET input); must not exceed the negative supply. |
| 10 | IN3+ | input | Non-inverting input of amplifier 3 (JFET input); must not exceed the negative supply. |
| 11 | V- | power_in | Negative supply; input voltages must not be allowed to exceed it, and the supply must never be reversed in polarity. |
| 12 | IN4+ | input | Non-inverting input of amplifier 4 (JFET input); must not exceed the negative supply. |
| 13 | IN4- | input | Inverting input of amplifier 4 (JFET input); must not exceed the negative supply. |
| 14 | OUT4 | output | Output of amplifier 4; may be shorted to ground indefinitely, but not more than one output at once. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LF444CN`
- Footprint: `Package_DIP:DIP-14_W7.62mm`
- 3D model: DIP-14 (KiCad packages3D, STEP)
- 3D model files: `lf444cn-etched.step` / `lf444cn-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lf444cn.step` / `lf444cn.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/lf444) (21 pp, sha256 `fba9120ffbce1dca`, retrieved 2026-10-01, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/lf444cn-datasheet.pdf)