Analog Devices Inc. ADUM2210SRWZ

Overview

ADuM2210SRWZ from Analog Devices is a dual-channel, 5 kV rms reinforced digital isolator using iCoupler® transformer-based technology. It provides bidirectional signal isolation between two independent circuits operating at 3.0–5.5 V on each side, supports up to 10 Mbps NRZ data rate, features 3 ns max pulse width distortion and 25 kV/µs common-mode transient immunity, and is used in RS-485 transceiver isolation and medical equipment safety barriers.

For engineers reviewing the ADuM2210SRWZ datasheet, ADuM2210SRWZ pinout, ADuM2210SRWZ application, or ADuM2210SRWZ equivalent, key selection criteria include reinforced 5 kV rms isolation rating, 125°C operation, mixed-voltage level translation (3.3 V/5 V), low dynamic supply current (0.19 mA/Mbps on input), and SOIC-16 wide-body package with 7.8 mm creepage.

Technical Context

The ADuM2210SRWZ implements two independent unidirectional isolation channels using monolithic air-core transformers, enabling galvanic separation without optocoupler limitations. Its architecture supports asymmetric supply configurations-VDD1 and VDD2 may operate at 3.3 V or 5 V independently-enabling level translation across the barrier while maintaining precise timing.

It delivers deterministic propagation delay (≤55 ns at 10 Mbps, T grade), channel-to-channel matching ≤3 ns, and robust noise rejection via >25 kV/µs common-mode transient immunity. The device defaults to low output state and includes refresh circuitry ensuring DC correctness during idle periods, with a 1.6 µs refresh period under 5 V/3.3 V mixed operation.

Key Specifications

Pinout & Package

ADuM2210SRWZ uses a 16-lead SOIC wide-body (RW-16) package with 7.8 mm minimum creepage and clearance, optimized for reinforced insulation in safety-critical designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8621ED-B-IS and ISO7721DWR, ADuM2210SRWZ offers superior common-mode transient immunity consistency across temperature, proven iCoupler reliability in long-life medical systems, and tighter channel matching (3 ns vs. 5 ns), making it preferred for precision timing-critical isolation where deterministic skew matters more than raw speed.

Availability

ADuM2210SRWZ is available at Aetrix Electronics and suitable for industrial power supplies, medical diagnostic equipment, and hybrid electric vehicle battery management systems requiring stable component supply with full regulatory traceability and long-term lifecycle support.

Supply support for ADuM2210SRWZ 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 since 1965.

ADuM2210SRWZ belongs to the iCoupler® digital isolator product line, designed specifically for safety-critical, high-reliability isolation in medical, industrial, and automotive systems demanding reinforced insulation, extended temperature operation, and low-power signal integrity.

FAQ

What is the maximum continuous working voltage supported by ADuM2210SRWZ?

The ADuM2210SRWZ supports a maximum continuous working voltage of 645 V peak under reinforced insulation conditions per DIN EN IEC 60747-17 (VDE 0884-17). This rating applies to bipolar waveforms and is validated for lifetime insulation integrity at 125°C ambient. The ADuM2210SRWZ achieves this with its RW-16 package's 7.8 mm creepage and internal 18 µm insulation gap, making it suitable for 400 V AC mains-connected systems.

Does ADuM2210SRWZ support level translation between 3.3 V and 5 V domains?

Yes, ADuM2210SRWZ fully supports bidirectional level translation: VDD1 may be 3.3 V while VDD2 is 5 V (or vice versa), with guaranteed logic thresholds (VIH = 0.7×VDDX, VIL = 0.3×VDDX) and output drive strength (VOH ≥ VDDX − 0.5 V at 3.2 mA) on both sides. This allows direct interfacing between 3.3 V microcontrollers and 5 V transceivers without external level shifters, as confirmed in Tables 7 and 10 of the Rev. G datasheet.

What is the default output state of ADuM2210SRWZ when unpowered?

The ADuM2210SRWZ has a default-low output configuration: when either VDD1 or VDD2 is unpowered, the corresponding outputs enter a known low state within 1 µs of power restoration, as defined in Table 20 (Truth Table). This fail-safe behavior prevents undefined logic states in safety-critical systems such as medical isolation barriers or motor drive enable lines, eliminating need for external pull-down resistors.

How does ADuM2210SRWZ achieve DC correctness without optical components?

ADuM2210SRWZ uses an on-chip refresh circuit that periodically retransmits the last valid logic state across the transformer barrier every 1.6–1.8 µs (depending on supply configuration), ensuring DC signal retention during idle periods. Unlike optocouplers, this method avoids LED degradation and provides guaranteed monotonic transitions, verified in the "DC Correctness and Magnetic Field Immunity" section (page 17) of the datasheet.

Is ADuM2210SRWZ pin-compatible with other ADuM22xx isolators?

No, ADuM2210SRWZ is not pin-compatible with ADuM2211 or ADuM220N variants: the ADuM2210 has inputs VIA/VIB on pins 4/5 and outputs VOA/VOB on pins 13/12, whereas ADuM2211 swaps input/output positions (VIA on pin 13, VOA on pin 4). Pin compatibility is only maintained within the ADuM2210 family (e.g., ADuM2210ARWZ, ADuM2210BRWZ), all sharing identical RW-16 pinout and function mapping as shown in Figure 4 and Table 22.