# ADUM1201ARZ-JSM

**JSMSEMI** · Digital Isolators · SOP-8

ADUM1201ARZ-JSM from JSMSEMI, in a SOP-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 | VIA | input | Logic input for channel A (Side 1); VIH = 0.7×VDD1, VIL = 0.3×VDD1; drives VOA on Side 2. |
| 2 | GND1 | power_in | Ground reference for Side 1 (input side); 0V reference for VDD1 and all Side-1 signals. |
| 3 | VDD1 | power_in | Supply voltage for Side 1; operating range 2.5V to 5.5V; absolute maximum 6V. |
| 4 | VIB | input | Logic input for channel B (Side 1); VIH = 0.7×VDD1, VIL = 0.3×VDD1; drives VOB on Side 2. |
| 5 | VOB | output | Logic output for channel B (Side 2); default output state is high when VDD1 or VDD2 is unpowered (ARZ default-high variant). |
| 6 | VDD2 | power_in | Supply voltage for Side 2; operating range 2.5V to 5.5V; absolute maximum 6V. |
| 7 | GND2 | power_in | Ground reference for Side 2 (output side); 0V reference for VDD2 and all Side-2 signals. |
| 8 | VOA | output | Logic output for channel A (Side 2); default output state is high when VDD1 or VDD2 is unpowered (ARZ default-high variant). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-8 |
| Category | Signal Isolation Devices |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `ADUM1201ARZ-JSM`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `adum1201arz-jsm-etched.step` / `adum1201arz-jsm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adum1201arz-jsm.step` / `adum1201arz-jsm.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603406898779734016) (5 pp, sha256 `1ad6d2c557066bc0`, retrieved 2026-10-21, 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/adum1201arz-jsm-datasheet.pdf)