Analog Devices Inc. ADUM6402CRWZ-RL

Overview

ADUM6402CRWZ-RL from Analog Devices is a quad-channel digital isolator with integrated isoPower® DC-to-DC converter, providing 5 kV rms reinforced isolation, 25 Mbps data rate per channel, and up to 400 mW isolated output power at 5 V. It operates across −40°C to +105°C and delivers regulated 5 V or 3.3 V isolated supply for isolated sensor interfaces and RS-485 transceivers.

For engineers reviewing the ADUM6402CRWZ-RL datasheet, ADUM6402CRWZ-RL pinout, ADUM6402CRWZ-RL application, or ADUM6402CRWZ-RL equivalent, this device supports high-CMTI (>25 kV/μs) signal integrity in medical isolation, AC/DC bias supply, and industrial I/O modules where compact, self-powered isolation is required.

Technical Context

The ADUM6402CRWZ-RL implements iCoupler® transformer-based isolation with four unidirectional channels (inputs on side 1, outputs on side 2), supporting 1–25 Mbps NRZ data rates. Its integrated DC-to-DC converter uses high-frequency switching (625 kHz PWM, 180 MHz oscillator) to generate regulated isolated VISO from VDD1, with selectable 5 V or 3.3 V output via VSEL configuration.

It features Schmitt-triggered inputs, undervoltage lockout (2.4 V/2.7 V hysteresis), and thermal shutdown at 150°C. Safety certification includes UL 1577 (5000 V rms), VDE V 0884-10 (reinforced, VIORM = 846 V peak), and IEC 60601-1 (250 V rms) for medical applications - all validated for the RW-16 wide-body SOIC package.

Key Specifications

Pinout & Package

The ADUM6402CRWZ-RL is housed in a 16-lead SOIC wide-body (RW-16) package with gull-wing leads, 1.27 mm pitch, and 10.3 mm × 10.3 mm footprint. Input-side pins (1–8) and output-side pins (9–16) are electrically isolated with internal transformer coupling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel isolated power applications.

Compared with ADUM6402ARWZ-RL and SI88642ED-IS, the ADUM6402CRWZ-RL uniquely combines 25 Mbps speed, 5 kV rms VDE-certified reinforced isolation, and dual-output-voltage (3.3 V/5 V) flexibility in a single RW-16 package - making it optimal for medical, high-speed industrial, and compact isolated power designs.

Availability

ADUM6402CRWZ-RL is available at Aetrix Electronics and suitable for medical isolation systems, industrial sensor interfaces, RS-485 transceiver bias supplies, and AC/DC power supply start-up circuits requiring stable component supply and long-term lifecycle support.

Supply support for ADUM6402CRWZ-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, headquartered in Norwood, MA.

The ADuM640x family was designed to replace optocouplers and discrete isolation + DC/DC solutions in space- and reliability-constrained applications, targeting medical, industrial, and energy infrastructure markets.

FAQ

What is the maximum isolated output power of the ADUM6402CRWZ-RL?

The ADUM6402CRWZ-RL delivers up to 400 mW of regulated isolated output power at 5 V when supplied with a 5 V input. At 3.3 V input, it provides up to 132 mW at 3.3 V output or 330 mW at 3.3 V output from a 5 V input. These values are specified in Table 1 of the ADUM6402CRWZ-RL datasheet and depend on input/output voltage combination and thermal conditions.

Does the ADUM6402CRWZ-RL support both 3.3 V and 5 V isolated output voltages?

Yes, the ADUM6402CRWZ-RL supports configurable isolated output voltage: connecting VSEL to GNDISO selects 3.3 V VISO, while connecting VSEL to VISO selects 5 V VISO. This selection is valid across all supported input voltages (3.3 V or 5 V), and output regulation accuracy is ±5% over load and temperature per the ADUM6402CRWZ-RL electrical specifications.

What safety certifications apply to the ADUM6402CRWZ-RL?

The ADUM6402CRWZ-RL holds UL 1577 recognition (5000 V rms, 1 min), VDE V 0884-10 certification (reinforced, VIORM = 846 V peak), IEC 60601-1 (250 V rms), and IEC 60950-1 (400 V rms) approvals - all verified for the RW-16 package. These certifications are documented in Table 15 and Regulatory Information section of the ADUM6402CRWZ-RL datasheet.

How does the ADUM6402CRWZ-RL handle undervoltage conditions?

The ADUM6402CRWZ-RL incorporates undervoltage lockout (UVLO) on VDD1, VDDL, and VISO supplies with a positive-going threshold of 2.7 V and negative-going threshold of 2.4 V (0.3 V hysteresis). When any supply drops below VUV−, the device disables outputs and halts DC-DC operation until the supply rises above VUV+, ensuring clean startup and fault-safe behavior in the ADUM6402CRWZ-RL.

Can the ADUM6402CRWZ-RL be used in medical applications requiring IEC 60601-1 compliance?

Yes, the ADUM6402CRWZ-RL is certified to IEC 60601-1 for 250 V rms working voltage (reinforced insulation) and is explicitly listed in its regulatory documentation for medical isolation use. Its 5000 V rms withstand voltage, 846 V peak VIORM, and 8.3 mm creepage in RI-16-1 variant (or 7.6 mm in RW-16) meet essential safety requirements for patient-connected devices when implemented per AN-0971 layout guidance.