# MC33079DR2G

**onsemi** · Operational Amplifier · SOIC-14

MC33079DR2G from onsemi, in a SOIC-14. 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. Low-impedance push-pull output; typical short-circuit current ±30 mA. |
| 2 | IN1- | input | Inverting input of op-amp channel 1. High-impedance bipolar input; typical input bias current 300 nA. |
| 3 | IN1+ | input | Non-inverting input of op-amp channel 1. High-impedance bipolar input; common-mode range extends to within ~1.8 V of each supply rail. |
| 4 | VCC | power_in | Positive supply rail. Operating range ±2.5 V to ±18 V (5 V to 36 V single-supply). Typical quiescent current 4 mA per amplifier. |
| 5 | IN2+ | input | Non-inverting input of op-amp channel 2. High-impedance bipolar input. |
| 6 | IN2- | input | Inverting input of op-amp channel 2. High-impedance bipolar input. |
| 7 | OUT2 | output | Output of op-amp channel 2. Low-impedance push-pull output. |
| 8 | OUT3 | output | Output of op-amp channel 3. Low-impedance push-pull output. |
| 9 | IN3- | input | Inverting input of op-amp channel 3. High-impedance bipolar input. |
| 10 | IN3+ | input | Non-inverting input of op-amp channel 3. High-impedance bipolar input. |
| 11 | VEE | power_in | Negative supply rail (or GND in single-supply operation). Operating range ±2.5 V to ±18 V split, or 0 V for single-supply 5 V to 36 V use. |
| 12 | IN4+ | input | Non-inverting input of op-amp channel 4. High-impedance bipolar input. |
| 13 | IN4- | input | Inverting input of op-amp channel 4. High-impedance bipolar input. |
| 14 | OUT4 | output | Output of op-amp channel 4. Low-impedance push-pull output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOIC-14 |
| Category | Op-amp/Cmp |
| Pins | 14 |

## Ordering variants

Same part, different packaging or reel option.

- `MC33079DR2G`
- `MC33079DR2GDG`

## CAD (KiCad official)

- Symbol: `MC33079DR2G`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `mc33079dr2g-etched.step` / `mc33079dr2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc33079dr2g.step` / `mc33079dr2g.glb` are the bare package body.

## 3D model downloads

Two STEP files. Same geometry, different body top:

| File | Size | Use it when |
|---|---|---|
| [`mc33079dr2g.step`](mc33079dr2g.step) | 195 KB | You want the bare part, or you mark your own boards. |
| [`mc33079dr2g-etched.step`](mc33079dr2g-etched.step) | 2.9 MB | You want the part with `MC33079DR2G` already on it. |

The marking in the etched file is real recessed geometry cut into the solid, not a
texture or a decal: 699 faces against 237 in the bare model. It
survives export, section views, and rendering in any CAD tool, and it drops straight
into KiCad or Fusion with no extra setup.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc33079-d.pdf) (14 pp, sha256 `dbab23a4d3380608`, retrieved 2026-08-17, tier: manufacturer)
- **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/mc33079dr2g-datasheet.pdf)