# LM258D

**Texas Instruments** · Operational Amplifier · SOIC-8

LM258D from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT1 | output | Output of op-amp channel 1. |
| 2 | IN1- | input | Inverting (negative) input of op-amp channel 1. |
| 3 | IN1+ | input | Non-inverting (positive) input of op-amp channel 1. |
| 4 | V- | power_in | Negative (lowest) supply rail or ground for single-supply operation. Supply range 3 V to 32 V (V+ to V-) for LM258A. |
| 5 | IN2+ | input | Non-inverting (positive) input of op-amp channel 2. |
| 6 | IN2- | input | Inverting (negative) input of op-amp channel 2. |
| 7 | OUT2 | output | Output of op-amp channel 2. |
| 8 | V+ | power_in | Positive (highest) supply rail. Supply range 3 V to 32 V (V+ to V-) for LM258A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Op-amp/Cmp |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `LM258DD`
- `LM258DPW`
- `LM258DDGK`
- `LM258DP`
- `LM258DDDF`

## CAD (KiCad official)

- Symbol: `LM258D`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm258d-etched.step` / `lm258d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm258d.step` / `lm258d.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](docs/lm258d-datasheet.pdf) (58 pp, sha256 `8c216315ee3a22fc`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lm258d-datasheet.pdf)