Analog Devices Inc. ADUM2402CRWZ-RL

Overview

ADUM2402CRWZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based isolation technology, providing bidirectional signal transmission across a reinforced 5000 V_rms isolation barrier. It supports 90 Mbps data rate (NRZ), <2 ns pulse width distortion, and operates from 2.7 V to 5.5 V on both sides for 3 V/5 V level translation-used in isolated SPI, RS-485 transceiver interfaces, and motor drive gate driver control loops.

For engineers reviewing the ADUM2402CRWZ-RL datasheet, ADUM2402CRWZ-RL pinout, ADUM2402CRWZ-RL application, or ADUM2402CRWZ-RL equivalent, key selection criteria include guaranteed 90 Mbps operation, <2 ns channel-to-channel matching, output enable functionality, high common-mode transient immunity (>25 kV/µs), and UL/VDE-certified 16-lead SOIC wide-body package with 8.3 ns minimum pulse width.

Technical Context

The ADUM2402CRWZ-RL implements two forward and two reverse channels (2/2 direction configuration), enabling full-duplex isolated communication without external direction control logic. Its monolithic air-core transformer architecture eliminates LED aging and CTR drift inherent in optocouplers, delivering stable timing over temperature and lifetime.

It features a patented refresh circuit ensuring DC correctness during idle periods and power transitions, plus independent VDD1/VDD2 supplies supporting mixed-voltage operation (e.g., 3.3 V MCU side / 5 V analog side). Propagation delay skew is limited to 10 ns max, and output enable pins (OE1/OE2) allow dynamic channel shutdown with 6–8 ns enable/disable latency.

Key Specifications

Pinout & Package

ADUM2402CRWZ-RL uses a 16-lead SOIC wide-body package (RW-16) with 7.62 mm creepage/clearance, optimized for high-voltage isolation compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8642ED-B-IS and ISO6742FDWR, ADUM2402CRWZ-RL uniquely combines 90 Mbps speed, 5000 V_rms reinforced isolation, dual output enable, and <2 ns timing precision-making it optimal for safety-critical, high-bandwidth, and mixed-voltage isolated interfaces.

Availability

ADUM2402CRWZ-RL is available at Aetrix Electronics and suitable for industrial motor drives, medical diagnostic equipment, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle support, and certified high-voltage isolation.

Supply support for ADUM2402CRWZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and healthcare markets.

The ADuM240x family was designed specifically for robust, high-speed digital isolation in safety-critical systems-emphasizing timing accuracy, regulatory compliance, and reliability over optocoupler alternatives.

FAQ

What is the maximum guaranteed data rate for ADUM2402CRWZ-RL?

The ADUM2402CRWZ-RL is rated for a maximum guaranteed data rate of 90 Mbps (NRZ) with pulse width distortion ≤2 ns. This specification is validated across temperature (−40°C to +105°C) and supply voltage (2.7 V to 5.5 V per side), making it suitable for high-speed isolated SPI, digital encoder interfaces, and real-time control loops where timing fidelity is critical. The CRWZ grade ensures this performance level is maintained in production units.

Does ADUM2402CRWZ-RL support level translation between 3.3 V and 5 V domains?

Yes, ADUM2402CRWZ-RL supports true bidirectional level translation: VDD1 and VDD2 operate independently from 2.7 V to 5.5 V, allowing 3.3 V logic on one side to communicate with 5 V logic on the other. Input thresholds adapt automatically (VIH = 2.0 V at 5 V, 1.6 V at 3 V), and output voltages swing rail-to-rail relative to their respective supplies-eliminating external level shifters in mixed-voltage isolated systems.

How does the output enable (OE) function work on ADUM2402CRWZ-RL?

ADUM2402CRWZ-RL features two independent active-low output enable pins: OE1 controls outputs OA/OB (forward channels), and OE2 controls OC/OD (reverse channels). When asserted, each disables its associated outputs into high-impedance state with 6–8 ns propagation delay. This enables dynamic bus sharing, low-power sleep modes, and safe hot-plug sequencing-critical in modular PLC backplanes and reconfigurable test equipment.

What safety certifications apply to ADUM2402CRWZ-RL?

ADUM2402CRWZ-RL carries UL 1577 (5000 V_rms/1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 645 V_peak), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (medical BF), and IEC/CSA 61010-1 (industrial). These certifications validate its suitability for reinforced insulation in Class I medical devices, industrial drives, and measurement equipment requiring double protection against electric shock.

Is ADUM2402CRWZ-RL pin-compatible with other ADuM240x variants?

Yes, ADUM2402CRWZ-RL shares identical RW-16 SOIC wide-body packaging and pinout with all ADuM240x family members (e.g., ADUM2402ARWZ, ADUM2402BRWZ). Channel configuration (2 forward / 2 reverse), supply pin locations (VDD1/GND1/VDD2/GND2), and OE pin assignments are consistent across grades-enabling drop-in replacement during design iteration or qualification without PCB changes.