Analog Devices Inc. ADUM2401CRWZ

Overview

ADUM2401CRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler® transformer technology, providing galvanic isolation between two 3.3 V/5 V domains with bidirectional signal transmission. It delivers 90 Mbps data rate, <2 ns pulse width distortion, and 2 ns channel-to-channel matching in a 16-lead SOIC wide-body package, enabling high-speed isolated communication in motor drive gate driver interfaces.

For engineers reviewing the ADUM2401CRWZ datasheet, ADUM2401CRWZ pinout, ADUM2401CRWZ application, or ADUM2401CRWZ equivalent, this page provides verified specifications, real-world use cases, validated alternatives, and supply-chain support for industrial embedded systems requiring certified 5 kV_rms isolation and precise timing integrity.

Technical Context

The ADUM2401CRWZ implements four independent unidirectional channels (2 forward, 2 reverse) using monolithic air-core transformers and integrated CMOS interface circuitry, eliminating LED/photodiode aging and CTR drift. Its dual-supply architecture supports asymmetric operation (e.g., 5 V primary / 3.3 V secondary), enabling level translation across the isolation barrier without external logic.

It features a patented refresh circuit ensuring DC correctness during idle periods and power transitions, and meets VDE 0884-17 (DIN EN IEC 60747-17) reinforced insulation requirements with VIORM = 645 V_peak and VISO = 5000 V_rms/1 min, supporting medical (IEC 60601-1) and industrial safety compliance.

Key Specifications

Pinout & Package

ADUM2401CRWZ uses a 16-lead SOIC wide-body (RW-16) package with 7.5 mm creepage and clearance, rated for 5000 V_rms isolation. Pin functions are defined per the ADuM2401 functional diagram (Figure 2, Rev. H datasheet).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8641ED-B-IS and ISO6741-Q1, ADUM2401CRWZ uniquely combines 90 Mbps speed, 5000 V_rms reinforced isolation, integrated DC correctness, and 2 ns timing precision-making it optimal for high-performance industrial and medical power control where timing integrity and safety certification are co-dependent requirements.

Availability

ADUM2401CRWZ is available at Aetrix Electronics and suitable for motor drives, industrial PLC I/O modules, and medical imaging power supplies requiring stable component supply, long-term lifecycle assurance, and certified safety compliance.

Supply support for ADUM2401CRWZ 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 high-speed, safety-certified digital isolation in power electronics and medical equipment, emphasizing timing accuracy, CMTI robustness, and regulatory compliance over generic signal isolation.

FAQ

What is the maximum data rate supported by ADUM2401CRWZ?

ADUM2401CRWZ supports up to 90 Mbps (NRZ) with guaranteed pulse width distortion <2 ns. This performance is specified for the CRWZ grade under recommended operating conditions (VDD1/VDD2 = 4.5–5.5 V or 2.7–3.6 V, TA = −40°C to +105°C). At 90 Mbps, typical supply current is 57–82 mA on VDD1 and 31–43 mA on VDD2 when operating at 5 V/3 V or 3 V/5 V configurations.

Does ADUM2401CRWZ support level translation between 3.3 V and 5 V domains?

Yes, ADUM2401CRWZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently from 2.7 V to 5.5 V, allowing configurations such as 5 V on side 1 and 3.3 V on side 2 (or vice versa). Input thresholds scale accordingly (VIH = 2.0 V at 5 V, 1.6 V at 3 V), and output voltages track their respective supply rails with defined VOH/VOL margins.

What safety certifications apply to ADUM2401CRWZ?

ADUM2401CRWZ holds 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) with VIORM = 645 V_peak. These certifications are valid for the RW-16 package variant and confirm reinforced insulation suitability for safety-critical applications.

How does the refresh feature in ADUM2401CRWZ work?

The ADUM2401CRWZ incorporates a patented internal refresh circuit that periodically samples and retransmits the last valid input state during prolonged DC conditions or signal inactivity. This ensures output stability without external intervention, eliminating false transitions during power-up, power-down, or idle bus states-critical for fail-safe gate driver and sensor interface designs.

What is the channel configuration of ADUM2401CRWZ?

ADUM2401CRWZ has a fixed 2-forward / 2-reverse unidirectional channel configuration: inputs INA/INB on side 1 drive outputs OUTA/OUTB on side 2; inputs IN1/IN2 (pins 15/16) on side 2 drive outputs OUT1/OUT2 (pins 1/2) on side 1. This differs from ADUM2400 (4-forward) and ADUM2402 (2-forward/2-reverse with different pin mapping), and is explicitly defined in Figure 2 of the Rev. H datasheet.