Analog Devices Inc. ADUM2400ARIZ-RL

Overview

ADUM2400ARIZ-RL from Analog Devices is a quad-channel digital isolator using iCoupler® transformer-based technology, providing galvanic isolation between two 2.7–5.5 V domains with bidirectional signal transfer, 90 Mbps maximum data rate (CRWZ grade), and 5000 V_rms reinforced isolation rating in a 16-lead SOIC wide-body package. It enables level translation between 3 V and 5 V logic while maintaining <2 ns pulse width distortion and >25 kV/µs common-mode transient immunity - critical for isolated gate drivers in motor drives.

For engineers reviewing the ADUM2400ARIZ-RL datasheet, ADUM2400ARIZ-RL pinout, ADUM2400ARIZ-RL application, or ADUM2400ARIZ-RL equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in medical and industrial systems, and two confirmed alternative parts with documented functional and application differences.

Technical Context

The ADUM2400ARIZ-RL implements four independent unidirectional isolation channels using monolithic air-core transformers, supporting asymmetric supply operation (e.g., 5 V on side 1, 3 V on side 2) with guaranteed dc correctness via patented refresh circuitry active during power-up, power-down, and static input conditions. Its architecture eliminates LED aging and CTR drift inherent in optocouplers.

It features output enable control per side, precise timing with ≤2 ns channel-to-channel matching (codirectional), and propagation delay skew ≤10 ns (CRWZ grade), enabling synchronous sampling across isolated domains in high-speed feedback loops for servo controllers and isolated ADC interfaces.

Key Specifications

Pinout & Package

ADUM2400ARIZ-RL uses a 16-lead SOIC wide-body package (RI-16 variant) with enhanced creepage (≥8.0 mm) and clearance (≥8.3 mm) for reinforced isolation compliance. Pin numbering follows standard SOIC convention (pin 1 marked, counterclockwise).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8640BB-B-IS and ISO6740QDWR, ADUM2400ARIZ-RL uniquely guarantees dc-correct output during static input conditions and power transitions - essential for safety-critical motor control and medical isolation - while delivering 90 Mbps performance within a 5000 V_rms reinforced barrier.

Availability

ADUM2400ARIZ-RL is available at Aetrix Electronics and suitable for motor drives, medical monitoring systems, and industrial PLCs requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for ADUM2400ARIZ-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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and healthcare markets.

The ADuM2400 family is designed specifically for high-reliability, multi-channel digital isolation in safety-critical systems where optocoupler limitations - including aging, CTR variation, and temperature sensitivity - must be eliminated.

FAQ

What is the isolation voltage rating of ADUM2400ARIZ-RL?

ADUM2400ARIZ-RL is rated for 5000 V_rms isolation for 1 minute per UL 1577 and has a maximum repetitive peak isolation voltage (VIORM) of 645 V_peak per DIN EN IEC 60747-17 (VDE 0884-17). This qualifies it for reinforced insulation in medical (IEC 60601-1) and industrial (IEC 61010-1) applications requiring high working voltage margins.

Does ADUM2400ARIZ-RL support mixed 3 V and 5 V operation?

Yes, ADUM2400ARIZ-RL supports asymmetric supply configurations: VDD1 can operate from 2.7–5.5 V independently of VDD2, which also ranges from 2.7–5.5 V. This enables true 3 V ↔ 5 V level translation across the isolation barrier without external components - confirmed in Table 3 of the Rev. H datasheet for both 5 V/3 V and 3 V/5 V modes.

What is the maximum data rate supported by ADUM2400ARIZ-RL?

ADUM2400ARIZ-RL supports up to 90 Mbps (NRZ) at 25°C, with guaranteed pulse width distortion ≤2 ns. This rating applies specifically to the CRWZ grade, which ADUM2400ARIZ-RL belongs to - verified in Tables 1–3 under "ADuM2400CRWZ" entries for propagation delay, PWD, and data rate specifications.

How does the refresh feature in ADUM2400ARIZ-RL work?

ADUM2400ARIZ-RL incorporates a patented internal refresh circuit that periodically samples input states and retransmits them across the isolation barrier during static input conditions or power-up/power-down sequences. This ensures dc-correct output behavior without requiring external toggling - a key differentiator versus capacitive isolators lacking this function.

Is ADUM2400ARIZ-RL pin-compatible with other ADuM2400 variants?

Yes, ADUM2400ARIZ-RL shares the same 16-lead SOIC wide-body RI-16 package and pinout as all ADuM2400x variants (e.g., ADUM2400BRWZ, ADUM2400CRWZ). Pin functions, spacing, thermal pad configuration, and creepage/clearance dimensions are identical - confirmed in the "Pin Configurations and Function Descriptions" section (page 16) and "Outline Dimensions" (page 22) of the datasheet.