# ISO7820DWR

**Texas Instruments** · Digital Isolators · SOIC-16-300mil

ISO7820DWR from Texas Instruments, in a SOIC-16-300mil. 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 | GND1 | power_in | Ground connection for VCC1; voltages on the input side are referenced to this local ground (GND1). |
| 2 | NC | unconnected | Not connected (未连接) on the DW package. |
| 3 | VCC1 | power_in | Power supply for side 1 (input side), specified from 2.25 V to 5.5 V. |
| 4 | INA | input | Input, channel A; logic high requires at least 0.7 × VCCI and logic low at most 0.3 × VCCI. |
| 5 | INB | input | Input, channel B; logic high requires at least 0.7 × VCCI and logic low at most 0.3 × VCCI. |
| 6 | NC | unconnected | Not connected (未连接) on the DW package. |
| 7 | GND1 | power_in | Ground connection for VCC1; voltages on the input side are referenced to this local ground (GND1). |
| 8 | NC | unconnected | Not connected (未连接) on the DW package. |
| 9 | GND2 | power_in | Ground connection for VCC2; output-side voltages are referenced to this local ground (GND2). |
| 10 | NC | unconnected | Not connected (未连接) on the DW package. |
| 11 | NC | unconnected | Not connected (未连接) on the DW package. |
| 12 | OUTB | output | Output, channel B; recommended output current is 4 mA sink / -4 mA source at VCCO = 5 V, 2 mA / -2 mA at 3.3 V, and 1 mA / -1 mA at 2.5 V. |
| 13 | OUTA | output | Output, channel A; recommended output current is 4 mA sink / -4 mA source at VCCO = 5 V, 2 mA / -2 mA at 3.3 V, and 1 mA / -1 mA at 2.5 V. |
| 14 | VCC2 | power_in | Power supply for side 2 (output side), specified from 2.25 V to 5.5 V. |
| 15 | NC | unconnected | Not connected (未连接) on the DW package. |
| 16 | GND2 | power_in | Ground connection for VCC2; output-side voltages are referenced to this local ground (GND2). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `ISO7820DWR`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files: `iso7820dwr-etched.step` / `iso7820dwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso7820dwr.step` / `iso7820dwr.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/iso7820) (38 pp, sha256 `6e44e42902962d6d`, retrieved 2026-10-11, tier: lcsc)
- **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/iso7820dwr-datasheet.pdf)