Analog Devices Inc. ADUM152N1BRZ

Overview

ADUM152N1BRZ from Analog Devices is a 5-channel, 3.0 kV_RMS reinforced digital isolator based on iCoupler® transformer technology. It provides bidirectional signal isolation with 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and 1.8 V to 5.5 V dual-supply operation - enabling level translation across the barrier. It is used in industrial SPI bus isolation where high CMTI (>100 kV/µs) and fail-safe output behavior are required.

For engineers reviewing the ADUM152N1BRZ datasheet, ADUM152N1BRZ pinout, ADUM152N1BRZ application, or ADUM152N1BRZ equivalent, key selection criteria include reinforced insulation rating (VIORM = 565 V_peak), channel-to-channel propagation delay matching (≤4.0 ns), low dynamic power consumption at 100 Mbps, and fail-safe high/low configuration support for safety-critical power-up states.

Technical Context

The ADUM152N1BRZ implements five independent unidirectional CMOS-isolated channels using monolithic air-core transformers, eliminating LED aging and timing drift inherent in optocouplers. Its architecture ensures DC correctness without input toggling and supports two fail-safe output states (high or low) during input-side power loss.

It complies with DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation and meets UL 1577 (3000 V_RMS/1 min), IEC 62368-1, IEC 60601-1, and IEC 61010-1 safety standards. The device operates across −40°C to +125°C with supply voltages independently configurable from 1.7 V to 5.5 V per side.

Key Specifications

Pinout & Package

ADUM152N1BRZ is housed in a 16-lead, RoHS-compliant narrow-body SOIC package (SOIC_N-16), with 4.5 mm PCB clearance and 4.0 mm creepage distance. Input-side pins (1–8) and output-side pins (9–16) are physically segregated to maintain isolation integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si8651BB-B-IS and ISO6751FRDWR, ADUM152N1BRZ offers tighter propagation delay matching (≤4.0 ns vs. ≥6 ns), integrated fail-safe control, and superior CMTI (100 kV/µs), making it optimal for timing-critical and safety-assured designs despite slightly lower isolation voltage rating.

Availability

ADUM152N1BRZ is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and renewable energy monitoring requiring stable component supply, long-term lifecycle assurance, and certified reinforced isolation.

Supply support for ADUM152N1BRZ 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 ADuM15xxN family delivers high-speed, low-power, reinforced digital isolation for safety-critical systems where reliability, timing precision, and regulatory compliance are mandatory - especially in SPI, sensor interface, and motor control applications.

FAQ

What is the maximum guaranteed data rate for ADUM152N1BRZ?

The ADUM152N1BRZ guarantees a maximum data rate of 150 Mbps across all five channels under specified operating conditions (CL = 15 pF, CMOS levels). This value is tested and assured over temperature (−40°C to +125°C) and supply voltage (1.7 V to 5.5 V per side). Higher rates may be achievable in specific layouts but are not production-guaranteed. ADUM152N1BRZ maintains pulse width distortion ≤4.5 ns at this rate.

Does ADUM152N1BRZ support fail-safe output configuration?

Yes, ADUM152N1BRZ supports configurable fail-safe output behavior: outputs transition to either a predefined high or low state when the input-side supply (VDD1) falls below UVLO threshold (1.6 V). This behavior is fixed per variant - the "N1" suffix denotes the fail-safe low configuration. ADUM152N1BRZ ensures deterministic startup and brownout response without external supervision circuitry.

What safety certifications does ADUM152N1BRZ hold?

ADUM152N1BRZ is certified to UL 1577 (3000 V_RMS/1 min), DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation (VIORM = 565 V_peak), IEC/CSA 62368-1, IEC/CSA 60601-1 (2 MOPP), and IEC/CSA 61010-1. These approvals are documented under Certificate No. 40051926 (VDE) and CQC18001196412, confirming suitability for medical, industrial, and test equipment applications.

Can ADUM152N1BRZ operate with different supply voltages on each side?

Yes, ADUM152N1BRZ supports independent supply voltages from 1.7 V to 5.5 V on VDD1 (input side) and VDD2 (output side), enabling seamless level translation. For example, it can interface a 1.8 V FPGA I/O bank to a 5 V RS-485 transceiver while maintaining full 150 Mbps throughput and timing specifications - no external level shifters required. This capability is intrinsic to the iCoupler architecture.

What is the channel-to-channel propagation delay skew for ADUM152N1BRZ?

The ADUM152N1BRZ specifies a maximum codirectional propagation delay skew of 4.0 ns across its five channels under identical operating conditions (same temperature, voltage, load). This tight matching is critical for parallel data buses and time-aligned sampling in multi-channel acquisition systems. Skew is measured between any two channels operating in the same direction (input→output) and is guaranteed over the full −40°C to +125°C range.