Analog Devices Inc. ADUM2400BRIZ

Overview

ADUM2400BRIZ 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 barrier. It supports 3 V/5 V level translation, operates up to 10 Mbps with ≤3 ns pulse width distortion, and delivers <50 ns propagation delay at 10 Mbps-ideal for isolated SPI, RS-485 transceiver control, and motor drive gate driver feedback loops.

For engineers reviewing the ADUM2400BRIZ datasheet, ADUM2400BRIZ pinout, ADUM2400BRIZ application, or ADUM2400BRIZ equivalent, key selection criteria include its 10 Mbps data rate, 3 ns max pulse width distortion, SOIC-16 wide-body (RI-16) package with 8.3 mm creepage, dual supply flexibility (2.7–5.5 V), and regulatory compliance including UL 1577, VDE 0884-17, and IEC 62368-1.

Technical Context

The ADUM2400BRIZ implements four independent unidirectional isolation channels using monolithic air-core transformers and high-speed CMOS interface circuitry. Its architecture eliminates optocoupler limitations-including CTR degradation and temperature drift-by delivering deterministic timing with <3 ns pulse width distortion and <6 ns channel-to-channel matching for codirectional signals.

It features integrated refresh logic ensuring DC correctness during idle periods and power transitions, and supports mixed-voltage operation (e.g., 5 V primary / 3 V secondary) without external level shifters. Common-mode transient immunity exceeds 25 kV/µs, enabling robust operation in noisy industrial environments such as variable-frequency drives and isolated power supply feedback paths.

Key Specifications

Pinout & Package

ADUM2400BRIZ is housed in a 16-lead SOIC wide-body package with enhanced creepage (RI-16), measuring 10.3 mm × 10.3 mm × 2.3 mm, rated for 8.3 mm minimum creepage and 7.3 mm minimum clearance per IEC 60601-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8640BB-B-IS and ISO6740QDWR, ADUM2400BRIZ offers superior pulse width distortion (≤3 ns vs. ≥5 ns) and lower dynamic power consumption at 10 Mbps, making it optimal for precision timing-critical industrial control where deterministic latency and thermal management are prioritized over raw speed or automotive qualification.

Availability

ADUM2400BRIZ is available at Aetrix Electronics and suitable for industrial motor drives, medical monitoring equipment, programmable logic controller I/O modules, and isolated power supply feedback circuits requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.

Supply support for ADUM2400BRIZ 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 industrial, automotive, communications, and healthcare markets with precision, reliability, and innovation.

The ADuM2400 family belongs to Analog Devices' iCoupler® digital isolator product line, engineered specifically for high-reliability, low-latency, and safety-certified signal isolation in harsh electromagnetic environments.

FAQ

What is the maximum guaranteed data rate for ADUM2400BRIZ?

The ADUM2400BRIZ is rated for a maximum guaranteed data rate of 10 Mbps, with pulse width distortion maintained at ≤3 ns across the full operating temperature range (−40°C to +105°C). This specification is verified under load conditions of CL = 15 pF and CMOS signal levels, and applies to all four channels simultaneously without derating.

Does ADUM2400BRIZ support level translation between different supply voltages?

Yes, ADUM2400BRIZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently within 2.7 V to 5.5 V, enabling direct interfacing between 3.3 V microcontrollers and 5 V peripherals. Input thresholds adapt automatically (VIH = 2.0 V at 5 V, 1.6 V at 3 V), and output drive strength scales with the local VDD.

What safety certifications does ADUM2400BRIZ hold?

ADUM2400BRIZ (RI-16 package) is certified to UL 1577 (5000 V_rms for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 645 V_peak), IEC/EN/CSA 62368-1, IEC/CSA 60601-1, and IEC/CSA 61010-1. These approvals validate its suitability for reinforced insulation in medical, industrial, and test equipment applications.

How does the refresh feature in ADUM2400BRIZ improve system reliability?

The ADUM2400BRIZ incorporates patented refresh logic that periodically samples and retransmits the last valid input state during prolonged signal inactivity or power transitions. This ensures DC correctness without external circuitry-preventing undefined outputs during startup, brownout, or idle bus conditions in protocols like SPI and I²C.

Can ADUM2400BRIZ replace optocouplers in existing designs without layout changes?

Yes, ADUM2400BRIZ uses a pin-compatible SOIC-16 footprint (RI-16) matching legacy optocoupler footprints such as the HCPL-0723, enabling drop-in replacement in many cases. However, due to its dual-supply architecture and absence of current-transfer-ratio dependencies, biasing networks and pull-up resistors may require adjustment to optimize power and timing performance.