Analog Devices Inc. ADUM240E1BRWZ-RL

Overview

ADUM240E1BRWZ-RL from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 5.0 kV_rms reinforced insulation for high-noise industrial and medical systems. It delivers 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and operates across 1.8 V to 5 V supply rails with level translation. It serves as a robust replacement for optocouplers in SPI isolation, motor control feedback, and PLC I/O modules.

For engineers reviewing the ADUM240E1BRWZ-RL datasheet, ADUM240E1BRWZ-RL pinout, ADUM240E1BRWZ-RL application, or ADUM240E1BRWZ-RL equivalent, key selection criteria include its 5.0 kV_rms isolation rating, fail-safe high output configuration, SOIC_W-16 package with 7.8 mm creepage, and compatibility with 1.8 V–5 V logic on both sides of the barrier.

Technical Context

The ADUM240E1BRWZ-RL implements four independent unidirectional channels using monolithic air-core transformer coupling, ensuring dc-correct output states without input transitions. Its architecture supports fail-safe high outputs when input power is absent or disabled, and integrates undervoltage lockout (UVLO) with 1.6 V threshold on both VDD1 and VDD2 rails.

It achieves tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), enabling precise timing in synchronized multi-channel systems such as isolated ADC interfaces and servo drive control loops. The device meets DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation with VIORM = 849 V_peak.

Key Specifications

Pinout & Package

ADUM240E1BRWZ-RL uses a 16-lead wide-body SOIC (RW-16) package with creepage and clearance ≥7.8 mm. Input-side pins (1–8) and output-side pins (9–16) are fully isolated groups.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM240D1BRWZ-RL, ADUM240E1BRWZ-RL provides fail-safe high outputs essential for safety-enable paths; compared with SI8641ED-B-IS, it guarantees stable dc output states without refresh, simplifying control logic in low-duty-cycle systems.

Availability

ADUM240E1BRWZ-RL is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and electric vehicle battery management systems requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for ADUM240E1BRWZ-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 industrial, automotive, communications, and healthcare markets.

The ADUM240E1BRWZ-RL belongs to the iCoupler® digital isolator product line, engineered specifically for replacing optocouplers in high-reliability, high-noise, and safety-critical applications demanding long-term stability and low power.

FAQ

What is the maximum guaranteed data rate for ADUM240E1BRWZ-RL?

The ADUM240E1BRWZ-RL guarantees a data rate of 150 Mbps under all operating conditions (−40°C to +125°C, 1.8 V–5 V supplies). This is validated per datasheet Table 1–Table 7 switching specifications and applies to all four channels simultaneously with pulse width distortion ≤3 ns.

Does ADUM240E1BRWZ-RL support level translation between different logic voltages?

Yes, ADUM240E1BRWZ-RL supports independent 1.8 V to 5 V supplies on VDD1 and VDD2, enabling seamless level translation across the isolation barrier - for example, interfacing a 1.8 V FPGA I/O bank to a 3.3 V ADC SPI bus without external translators.

What safety certifications does ADUM240E1BRWZ-RL hold?

ADUM240E1BRWZ-RL is certified to UL 1577 (5000 V_rms), IEC/EN/CSA 62368-1, DIN EN IEC 60747-17 (VDE 0884-17), IEC/CSA 60601-1 (2-MOPP), and IEC/CSA 61010-1, with VIORM = 849 V_peak and reinforced insulation in SOIC_W-16 package.

How does the fail-safe output behavior work in ADUM240E1BRWZ-RL?

When VDD1 is unpowered or the DISABLE1 pin is driven high, ADUM240E1BRWZ-RL forces all four outputs (OUTA–OUTD) to logic high. This behavior is hardware-defined and requires no configuration - critical for safety interlocks and enable-path integrity.

Is ADUM240E1BRWZ-RL pin-compatible with earlier ADuM2400-series isolators?

Yes, ADUM240E1BRWZ-RL is pin-compatible with ADuM2400/ADuM2401/ADuM2402 per datasheet Features section, sharing identical SOIC_W-16 footprint, pin functions, and electrical interface - enabling drop-in replacement without PCB redesign.