# LM392DR

**Texas Instruments** · Special Purpose Amplifiers · SOIC-8

LM392DR from Texas Instruments, in a SOIC-8. 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 | OUTPUT A (Comparator) | output | Comparator A output is compatible with all types of logic systems, with low saturation voltage of 250 mV at 4 mA and direct interface to TTL or CMOS logic. |
| 2 | INVERTING INPUT A | input | Inverting input of comparator A; the input voltage must not go below -0.3 V and either input can go to 32 V without damage. |
| 3 | NONINVERTING INPUT A | input | Noninverting input of comparator A; the input voltage must not go below -0.3 V and the common-mode input range includes ground. |
| 4 | GND | power_in | Ground reference pin; the input common-mode range includes ground, allowing sensing at or near ground. |
| 5 | NONINVERTING INPUT B | input | Noninverting input of the operational amplifier B; the common-mode range is 0 V to V+ - 1.5 V and the input must not go below -0.3 V. |
| 6 | INVERTING INPUT B | input | Inverting input of the operational amplifier B; the common-mode range is 0 V to V+ - 1.5 V and the input must not go below -0.3 V. |
| 7 | OUTPUT B (Operational Amplifier) | output | Operational amplifier B output swings from 0 V to V+ - 1.5 V with a 2 kΩ load, and a short to ground is limited to approximately 40 mA. |
| 8 | V+ | power_in | Positive supply: 3 V to 32 V single supply, or ±1.5 V to ±16 V dual supply. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM392DR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm392dr-etched.step` / `lm392dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm392dr.step` / `lm392dr.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/lm392.pdf) (18 pp, sha256 `1e05b6151689bd49`, retrieved 2026-10-08, tier: manufacturer)
- **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/lm392dr-datasheet.pdf)