# ADUM1286CRZ

**Analog Devices** · Digital Isolators · SOIC-8

ADUM1286CRZ from Analog Devices, 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 | VDD1 | power_in | Supply voltage for isolator side 1, 3.135 V to 5.5 V. |
| 2 | VOA | output | Logic output A on the ADuM1286 side 1 output channel. |
| 3 | VIB | input | Logic input B on the ADuM1286 isolator side 1 channel. |
| 4 | GND1 | power_in | Ground reference for isolator side 1. |
| 5 | GND2 | power_in | Ground reference for isolator side 2. |
| 6 | VOB | output | Logic output B on the ADuM1286 isolator side 2 channel. |
| 7 | VIA | input | Logic input A on the ADuM1286 isolator side 2 channel. |
| 8 | VDD2 | power_in | Supply voltage for isolator side 2, 3.135 V to 5.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOIC-8 |
| Category | Interface ICs |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Temperature | TA | -40 |  | 125 | °C |  | 10 |
| Supply Voltages | VDD1, VDD2 | 3.135 |  | 5.5 | V | A, B, and C Grades | 10 |
| Maximum Continuous Working Voltage, Bipolar Waveform |  |  |  | 565 | VPEAK | Reinforced insulation rating per IEC 60747-17 (VDE 0884-17) | 11 |
| Storage Temperature Range | TST | -65 |  | 150 | °C |  | 11 |
| Ambient Operating Temperature Range | TA | -40 |  | 125 | °C |  | 11 |
| Supply Voltages | VDD1, VDD2 | -0.5 |  | 7 | V |  | 11 |
| Input Voltages | VIA, VIB | -0.5 |  |  | V | Maximum is VDDI + 0.5 V | 11 |
| Output Voltages | VOA, VOB | -0.5 |  |  | V | Maximum is VDD2 + 0.5 V | 11 |
| Average Output Current per Pin, Side 1 | IO1 | -10 |  | 10 | mA |  | 11 |
| Average Output Current per Pin, Side 2 | IO2 | -10 |  | 10 | mA |  | 11 |
| Common-Mode Transients |  | -100 |  | 100 | kV/μs | Refers to common-mode transients across the insulation barrier | 11 |
| Input Current per Channel | II | -10 | 0.01 | 10 | µA | 0 V ≤ VIx ≤ VDDx | 3 |
| Common-Mode Transient Immunity | /CM/ | 25 | 35 |  | kV/µs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V | 3 |
| IC Junction-to-Ambient Thermal Resistance | θJA |  | 85 |  | °C/W | Thermocouple located at center of package underside | 8 |
| Capacitance (Input-to-Output) | CI-O |  | 2 |  | pF | f = 1 MHz | 8 |
| Input Capacitance | CI |  | 4 |  | pF | Input capacitance from any input data pin to ground | 8 |
| Rated Dielectric Insulation Voltage |  |  | 3000 |  | VRMS | 1-minute duration | 9 |
| Minimum External Air Gap (Clearance) | L(I01) | 4 |  |  | mm | Measured from input terminals to output terminals, shortest distance through air | 9 |
| Minimum External Tracking (Creepage) | L(I02) | 4 |  |  | mm | Measured from input terminals to output terminals, shortest distance path along body | 9 |
| Minimum Internal Gap (Internal Clearance) |  | 18 |  |  | μm | Insulation distance through insulation | 9 |
| Tracking Resistance (Comparative Tracking Index) | CTI | 400 |  |  | V | DIN IEC 112/VDE 0303 Part 1; printed as >400 V | 9 |
| Maximum Repetitive Isolation Voltage | VIORM |  |  | 565 | VPEAK |  | 9 |
| Maximum Working Insulation Voltage | VIOWM |  |  | 400 | VRMS |  | 9 |
| Maximum Transient Isolation Voltage | VIOTM |  |  | 4000 | VPEAK | VTEST = 1.2 × VIOTM, t = 1 sec (100% production) | 9 |
| Maximum Impulse Voltage | VIMP |  |  | 4000 | VPEAK | Surge voltage in air, waveform per IEC 61000-4-5 | 9 |
| Maximum Surge Isolation Voltage | VIOSM |  |  | 10000 | VPEAK | VTEST ≥ 1.3 × VIMP (sample test), tested in oil, waveform per IEC 61000-4-5 | 9 |
| Safety Limiting Case Temperature | TS |  |  | 150 | °C | Maximum value allowed in the event of a failure (see Figure 3) | 9 |
| Total IDD1 and IDD2 Safety Limiting Current | IS |  |  | 290 | mA | Maximum value allowed in the event of a failure (see Figure 3) | 9 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | pC |  | In accordance with DIN EN IEC 60747-17 (VDE 0884-17), each ADuM1280/ADuM1281/ADuM1285/ADuM1286 is proof tested by applying an insulation test voltage ≥ 1050 VPEAK for 1 second (partial discharge detec | 8 |

## CAD (KiCad official)

- Symbol: `ADUM1286CRZ`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `adum1286crz-etched.step` / `adum1286crz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adum1286crz.step` / `adum1286crz.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM1280_1281_1285_1286.pdf) (18 pp, sha256 `9143762bd346e43a`, retrieved 2026-10-30, 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/adum1286crz-datasheet.pdf)