Analog Devices Inc. ADUM2402CRIZ

Overview

ADUM2402CRIZ from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing bidirectional signal isolation across a reinforced 5000 V_rms barrier. It supports 90 Mbps data rate, 2 ns max pulse width distortion, and operates from 2.7 V to 5.5 V on both sides-enabling 3 V/5 V level translation in motor drive gate driver interfaces.

For engineers reviewing the ADUM2402CRIZ datasheet, ADUM2402CRIZ pinout, ADUM2402CRIZ application, or ADUM2402CRIZ equivalent, this device is selected for high-speed, low-skew isolation in safety-critical industrial inverters, medical power supplies, and isolated ADC/DAC interfaces where precise timing, high CMTI (>25 kV/µs), and thermal stability up to 105°C are mandatory.

Technical Context

The ADUM2402CRIZ implements four independent unidirectional channels (2 forward + 2 reverse) with patented refresh circuitry ensuring DC correctness during idle or power transitions. Its monolithic air-core transformer architecture eliminates LED aging and CTR drift inherent in optocouplers.

It delivers 2 ns maximum pulse width distortion and 2 ns codirectional channel-to-channel matching at 90 Mbps, with output enable functionality and CMOS-compatible I/O thresholds scalable across 3 V and 5 V domains. Common-mode transient immunity exceeds 25 kV/µs at both logic high and low output states.

Key Specifications

Pinout & Package

ADUM2402CRIZ is housed in a 16-lead SOIC wide-body package (RW-16) with 7.6 mm creepage and clearance, optimized for high-voltage isolation integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8642ED-B-IS and ISO6742FDWR, ADUM2402CRIZ uniquely combines 90 Mbps speed, 5000 V_rms reinforced isolation, bidirectional channel pairing, and true 3 V/5 V level translation-making it the only option qualified for high-reliability motor drives and Class II medical power supplies.

Availability

ADUM2402CRIZ is available at Aetrix Electronics and suitable for motor drive inverters, medical isolated power supplies, and industrial PLC modules requiring stable component supply, long-term lifecycle assurance, and certified safety compliance.

Supply support for ADUM2402CRIZ 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 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 high-speed, low-skew galvanic isolation in safety-critical systems-replacing optocouplers with robust, temperature-stable, and long-lifetime iCoupler® technology.

FAQ

What is the maximum data rate supported by ADUM2402CRIZ?

ADUM2402CRIZ supports a maximum data rate of 90 Mbps under NRZ encoding with guaranteed pulse width distortion ≤2 ns. This specification applies to the CRWZ grade (denoted by 'C' in ADUM2402CRIZ) and is validated at 45 MHz logic frequency with 15 pF load. The device maintains timing integrity up to 120 Mbps in typical conditions, but 90 Mbps is the rated limit for full parameter compliance per Rev. H datasheet Table 1.

Does ADUM2402CRIZ support level translation between 3 V and 5 V domains?

Yes, ADUM2402CRIZ supports true bidirectional level translation: VDD1 and VDD2 operate independently from 2.7 V to 5.5 V. In 5 V/3 V mode, inputs referenced to 5 V logic can drive 3 V outputs, and vice versa in 3 V/5 V mode. Input thresholds adapt automatically (VIH = 2.0 V at 5 V, 1.6 V at 3 V), and output voltages scale to the local supply-enabling seamless interface between mixed-voltage subsystems without external level shifters.

What safety certifications apply to ADUM2402CRIZ?

ADUM2402CRIZ carries UL 1577 (5000 V_rms/1 min), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (medical), IEC/CSA 61010-1 (test equipment), CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17) certifications. Its VIORM = 645 V_peak and reinforced insulation construction meet creepage/clearance requirements for 300 V_RMS working voltage in pollution degree 2 environments per IEC 60664-1.

How does the refresh feature in ADUM2402CRIZ ensure DC correctness?

The ADUM2402CRIZ incorporates a patented internal refresh circuit that periodically samples and retransmits the last valid input state during static conditions or power transitions. This ensures outputs retain correct logic levels even with zero input toggling-critical for gate driver enable signals, watchdog resets, and power supply sequencing where indefinite DC states must be preserved across the isolation barrier without external supervision.

Can ADUM2402CRIZ be used in high-temperature industrial environments?

Yes, ADUM2402CRIZ is rated for continuous operation from −40°C to +105°C ambient temperature. Its iCoupler® transformer structure exhibits minimal parametric drift over temperature, with pulse width distortion change ≤3 ps/°C and propagation delay skew ≤10 ns across the full range. This makes ADUM2402CRIZ suitable for under-hood automotive ECUs, industrial motor drives, and enclosed power converters where thermal derating of optocouplers would otherwise limit performance.