Analog Devices Inc. ADUM4402CRIZ

Overview

ADUM4402CRIZ from Analog Devices is a 5 kV_RMS quad-channel digital isolator with bidirectional communication, 90 Mbps data rate, 2 ns max pulse width distortion, 3.3 V/5 V level translation capability, and output enable function-used in medical equipment, motor drives, and high-voltage power supplies for galvanic isolation of control signals.

For engineers reviewing the ADUM4402CRIZ datasheet, ADUM4402CRIZ pinout, ADUM4402CRIZ application, or ADUM4402CRIZ equivalent, this page delivers verified specifications, safety-rated insulation details (VIORM = 645 V_peak, UL 1577, VDE 0884-17), thermal derating behavior, and real-world design implications for high-CMTI (>25 kV/µs) isolated interfaces.

Technical Context

The ADUM4402CRIZ implements iCoupler® monolithic air-core transformer technology across four independent channels, enabling simultaneous bidirectional signal transfer across an isolation barrier without optocoupler latency or LED aging. It supports mixed-supply operation (3.3 V/5 V on opposite sides) and includes a patented refresh circuit ensuring DC correctness during idle or power transitions.

Its C-grade timing performance delivers 18–32 ns propagation delay (t_PHL/t_PLH) and ≤2 ns pulse width distortion at 90 Mbps, while the integrated input glitch filter and high common-mode transient immunity (>25 kV/µs) support robust operation in noisy industrial and medical environments.

Key Specifications

Pinout & Package

ADUM4402CRIZ uses a 16-lead SOIC wide-body package (RW-16) with enhanced creepage and clearance (min. 7.8 mm). Pin layout separates input-side (pins 1–8) and output-side (pins 9–16) terminals to maximize isolation integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM4402BRIZ and SI8642ED-B-IS, the ADUM4402CRIZ uniquely combines C-grade precision timing (≤2 ns PWD), dual output-enable control (VE1/VE2), and proven iCoupler® magnetic noise rejection - making it optimal for safety-critical, high-speed, and thermally constrained designs where deterministic behavior is mandatory.

Availability

ADUM4402CRIZ is available at Aetrix Electronics and suitable for motor drive control, medical diagnostics equipment, industrial PLC I/O modules, and isolated power supply feedback requiring stable component supply, long-term lifecycle assurance, and regulatory-compliant sourcing.

Supply support for ADUM4402CRIZ 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 industrial, automotive, communications, and healthcare markets since 1965.

The ADUM4402CRIZ belongs to the iCoupler® digital isolator product line, engineered specifically for replacing optocouplers in safety-isolated systems demanding low power, precise timing, and robust EMC performance across harsh electrical environments.

FAQ

What is the maximum data rate supported by ADUM4402CRIZ?

The ADUM4402CRIZ supports a maximum data rate of 90 Mbps in NRZ format. This specification applies under C-grade timing conditions (25°C, 3.3 V or 5 V supply) and assumes CL = 15 pF loading. At this rate, propagation delay remains within 18–32 ns and pulse width distortion stays ≤2 ns - enabling reliable high-speed SPI, UART, or custom protocol isolation in ADUM4402CRIZ-based designs.

Does ADUM4402CRIZ support mixed-voltage operation between input and output sides?

Yes, ADUM4402CRIZ supports mixed-voltage operation: VDD1 and VDD2 can be independently set to 3.3 V or 5 V (within 3.0–5.5 V range). For example, it operates with VDD1 = 5 V (MCU side) and VDD2 = 3.3 V (FPGA side), providing seamless level translation without external components - a core capability confirmed in Tables 7 and 10 of the ADUM4402CRIZ datasheet.

What safety certifications apply to ADUM4402CRIZ?

ADUM4402CRIZ holds UL 1577 (5000 V_RMS, 1 min), DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation (VIORM = 645 V_peak), IEC/EN/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1 approvals. These are validated for the RW-16 package variant and documented in Table 14 of the ADUM4402CRIZ datasheet Rev. G.

How does the output enable (VE1/VE2) function work in ADUM4402CRIZ?

In ADUM4402CRIZ, VE1 controls outputs on Side 1 (VOA–VOD), and VE2 controls outputs on Side 2 (VIA–VID). When asserted high (or left NC), outputs drive normally; when pulled low, they enter high-impedance state within 6–8 ns. This feature enables bus sharing, hot-swap isolation, and power-gated subsystem control - directly supported by truth table entries in Table 20 of the ADUM4402CRIZ datasheet.

What is the common-mode transient immunity (CMTI) rating for ADUM4402CRIZ?

The ADUM4402CRIZ has a guaranteed minimum common-mode transient immunity of 25 kV/µs, with typical performance up to 35 kV/µs. This value is measured per IEC standard conditions (VCM = 1000 V, transient magnitude = 800 V) and reflects the device's ability to reject fast-rising noise across the isolation barrier - critical for reliable operation in motor drives and switch-mode power supplies where ADUM4402CRIZ is commonly deployed.