Analog Devices Inc. ADUM3300ARWZ-RL

Overview

ADUM3300ARWZ-RL from Analog Devices is a triple-channel, 1 Mbps digital isolator based on iCoupler® transformer technology, operating at 3.3 V or 5 V with bidirectional signal transfer, 2.0 mA/channel quiescent current at ≤2 Mbps, and 100 ns max propagation delay. It enables robust SPI isolation in industrial PLCs where galvanic separation and ESD resilience are critical.

For engineers reviewing the ADUM3300ARWZ-RL datasheet, ADUM3300ARWZ-RL pinout, ADUM3300ARWZ-RL application, or ADUM3300ARWZ-RL equivalent, this page delivers verified specifications, SOIC-16W package details, IEC 61000-4-x system-level ESD performance, and real-world timing behavior for deterministic signal integrity in safety-critical control interfaces.

Technical Context

The ADUM3300ARWZ-RL implements three independent unidirectional isolation channels using monolithic air-core transformers, supporting dc-to-1 Mbps NRZ data rates with guaranteed pulse width distortion ≤40 ns. Its refresh circuit ensures DC correctness during power-up and static input conditions without external supervision.

It operates across 3.0–3.6 V or 4.5–5.5 V on either side, enabling 3.3 V/5 V level translation across the isolation barrier. The device meets DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 V peak and VISO = 2500 V rms for 1 minute, targeting industrial fieldbus and medical subsystem isolation where regulatory compliance is mandatory.

Key Specifications

Pinout & Package

ADUM3300ARWZ-RL uses a 16-lead SOIC wide-body (SOIC_W) RoHS-compliant package measuring 10.3 mm × 10.3 mm × 2.35 mm, with creepage/clearance ≥8.0 mm for reinforced insulation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital isolator applications.

Compared with ADUM3300BRWZ-RL and SI8630BB-B-IS, ADUM3300ARWZ-RL offers the lowest quiescent power at 1 Mbps and unique system-level ESD hardening-making it optimal for battery-backed or thermally constrained industrial nodes where reliability outweighs raw speed.

Availability

ADUM3300ARWZ-RL is available at Aetrix Electronics and suitable for industrial PLC I/O modules, isolated SPI data converters, RS-485 transceiver interfaces, and medical sensor front-ends requiring stable component supply and long-term lifecycle assurance.

Supply support for ADUM3300ARWZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation and industrial systems.

The ADuM3300 family was designed specifically for cost-sensitive, low-data-rate industrial and medical isolation applications requiring regulatory-compliant reinforced insulation and enhanced system-level ESD robustness.

FAQ

What is the maximum guaranteed data rate for ADUM3300ARWZ-RL?

The ADUM3300ARWZ-RL is rated for a maximum data rate of 1 Mbps with guaranteed pulse width distortion ≤40 ns. This specification holds across the full operating temperature range (−40°C to +105°C) and supply voltages (3.0–5.5 V on either side), ensuring reliable operation in deterministic control applications where timing predictability is essential. Exceeding 1 Mbps may result in increased jitter or bit errors.

Does ADUM3300ARWZ-RL support level translation between 3.3 V and 5 V domains?

Yes, ADUM3300ARWZ-RL supports bidirectional level translation: VDD1 can operate at 3.3 V while VDD2 runs at 5 V (or vice versa), with compatible input thresholds (VIH = 1.6 V or 2.0 V depending on supply) and output drive levels referenced to their respective supplies. This eliminates external level shifters in mixed-voltage systems such as isolated microcontroller-to-peripheral interfaces.

What safety certifications apply to ADUM3300ARWZ-RL?

ADUM3300ARWZ-RL carries UL 1577 (2500 V rms, 1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 V peak), IEC/EN/CSA 62368-1, IEC/CSA 60601-1, and IEC/CSA 61010-1 approvals. These certifications validate its suitability for reinforced insulation in industrial, medical, and test equipment where user and system safety are mandated by regional regulatory bodies.

How does the refresh feature in ADUM3300ARWZ-RL improve system reliability?

The patented refresh feature in ADUM3300ARWZ-RL continuously monitors static input states and retransmits DC logic levels across the isolation barrier during idle periods or power-up sequences. This prevents output latch-up or undefined states that could occur in transformer-based isolators without refresh, ensuring deterministic startup behavior and fault-free operation in safety-critical control paths.

Can ADUM3300ARWZ-RL replace optocouplers in existing designs without layout changes?

ADUM3300ARWZ-RL is not a direct drop-in replacement for most optocouplers due to differences in pinout, supply requirements (dual isolated supplies vs. single-side bias), and timing behavior. However, its SOIC-16W footprint matches industry-standard 16-lead wide-body packages, and its simplified interface (no current-limiting resistors or CTR-dependent design) often reduces overall board area and improves long-term stability over optocoupler-based solutions.