Analog Devices Inc. ADUM1300CRWZ-RL

Overview

ADUM1300CRWZ-RL from Analog Devices is a triple-channel, unidirectional digital isolator based on iCoupler® transformer technology, delivering 90 Mbps data rate, <2 ns pulse width distortion, and 2 ns channel-to-channel matching at 125°C. It operates from 2.7 V to 5.5 V on both sides, supports 3 V/5 V level translation, and is qualified for automotive systems requiring high common-mode transient immunity (>25 kV/µs).

For engineers reviewing the ADUM1300CRWZ-RL datasheet, ADUM1300CRWZ-RL pinout, ADUM1300CRWZ-RL application, or ADUM1300CRWZ-RL equivalent, this device serves as a high-speed, low-jitter isolation solution for SPI, RS-485, and industrial field bus interfaces where dc-correct operation, thermal stability up to 125°C, and mixed-voltage domain bridging are critical.

Technical Context

The ADUM1300CRWZ-RL implements three independent unidirectional isolation channels using monolithic air-core transformers, enabling precise timing control without optocoupler drift or aging. Its patented refresh circuit ensures dc correctness during idle periods or single-supply loss - a key differentiator versus capacitive or magnetic alternatives.

It features bidirectional enable control (EN pin), supports asymmetric supply configurations (e.g., 5 V primary / 3 V secondary), and maintains sub-2 ns pulse width distortion across temperature (3 ps/°C drift) and voltage. Propagation delay skew is limited to 10 ns (typ), with codirectional channel matching of 2 ns (max) at 90 Mbps.

Key Specifications

Pinout & Package

ADUM1300CRWZ-RL is housed in a 16-lead SOIC wide-body package (7.6 mm body width, 10.3 mm length), RoHS-compliant, with creepage/clearance ≥8.3 mm per IEC 60664-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SI8630BB-B-IS and ISO6730RWR, ADUM1300CRWZ-RL uniquely combines 90 Mbps speed, 125°C operation, UL-certified 2500 Vrms isolation, and patented refresh-based dc correctness - making it the only option meeting full AEC-Q100 Grade 1 and IEC 61010-1 requirements for high-reliability industrial and automotive isolation.

Availability

ADUM1300CRWZ-RL is available at Aetrix Electronics and suitable for industrial PLCs, automotive battery management systems, motor drive inverters, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.

Supply support for ADUM1300CRWZ-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 since 1965.

The ADuM1300 family was designed specifically for high-speed, thermally robust digital signal isolation in safety-critical systems - emphasizing timing precision, dc correctness, and regulatory compliance over raw bandwidth alone.

FAQ

What is the maximum data rate supported by ADUM1300CRWZ-RL?

ADUM1300CRWZ-RL supports a maximum data rate of 90 Mbps (NRZ) with guaranteed pulse width distortion ≤2 ns. This is validated per Table 1 in Rev. M datasheet under 5 V/5 V, 125°C conditions. At 120 Mbps (typ), performance remains functional but falls outside guaranteed specs - design margins should retain 90 Mbps as the hard limit for production use.

Does ADUM1300CRWZ-RL support bidirectional communication?

No, ADUM1300CRWZ-RL is a unidirectional isolator: inputs INA/INB/INC reside on the VDD1 side and drive outputs OUTA/OUTB/OUTC on the VDD2 side. For bidirectional isolation, ADUM1301CRWZ-RL (with two forward + one reverse channel) is the designated variant - ADUM1300CRWZ-RL has fixed A→B, B→B, C→B directionality.

Can ADUM1300CRWZ-RL operate with different supply voltages on each side?

Yes, ADUM1300CRWZ-RL supports mixed-supply operation: VDD1 may be 3 V while VDD2 is 5 V (or vice versa), enabling true level translation. Electrical characteristics in Table 3 confirm valid operation at 3 V/5 V and 5 V/3 V configurations, including full 90 Mbps capability and <2 ns pulse width distortion.

What safety certifications does ADUM1300CRWZ-RL hold?

ADUM1300CRWZ-RL is certified to UL 1577 (2500 Vrms, 1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 Vpeak), IEC/EN/CSA 62368-1, EN 60950-1, IEC/CSA 60601-1, and IEC/CSA 61010-1. These approvals validate its use in medical, industrial, and automotive safety-critical systems.

How does the refresh feature in ADUM1300CRWZ-RL improve system reliability?

The patented refresh feature in ADUM1300CRWZ-RL continuously monitors input states and retransmits static logic levels across the isolation barrier - ensuring correct output state even during extended periods of no input transitions or if one supply (VDD1 or VDD2) is powered down. This eliminates output glitches or undefined states that plague non-refresh isolators in low-power or fault-recovery scenarios.