Analog Devices Inc. ADN4652BRWZ

Overview

ADN4652BRWZ from Analog Devices is a dual-channel, 5 kV_RMS galvanically isolated LVDS buffer supporting up to 600 Mbps data rates with 4.5 ns max propagation delay, 151 ps peak-to-peak total jitter, and fail-safe output high for open/short/terminated inputs. It isolates high-speed serial links in industrial AFEs and isolated SPI over LVDS.

For engineers reviewing the ADN4652BRWZ datasheet, ADN4652BRWZ pinout, ADN4652BRWZ application, or ADN4652BRWZ equivalent, this device delivers certified reinforced isolation (UL 1577, VDE 0884-17), ±8 kV ESD protection, and 2.5 V/3.3 V dual-supply flexibility - critical for noise-immune, safety-compliant high-speed data plane designs.

Technical Context

The ADN4652BRWZ integrates iCoupler® technology to provide galvanic isolation between two independent LVDS channels, each with fully differential input and output stages compliant with TIA/EIA-644-A. Its internal LDO accepts 3.3 V input and regulates to 2.5 V for core logic and LVDS drivers.

It features fail-safe receiver logic that forces outputs high when inputs are floating, shorted, or terminated but undriven - confirmed for ADN4652 - and achieves >25 kV/μs common-mode transient immunity across the isolation barrier, validated per IEC 61000-4-4.

Key Specifications

Pinout & Package

ADN4652BRWZ is housed in a 20-lead wide-body SOIC package (RW-20) with 7.8 mm creepage/clearance, rated for 5 kV_RMS isolation. Pin numbering follows standard SOIC convention with Side 1 (input side) occupying pins 1–10 and Side 2 (output side) pins 11–20.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADN4652BRWZ, ADN4651BRWZ offers identical isolation and jitter performance but requires signal path reassignment due to inverted channel mapping, while ISO6721FDWR trades LVDS-native operation and fail-safe behavior for lower cost and reduced channel count - making ADN4652BRWZ the optimal choice for drop-in, standards-compliant, high-fidelity LVDS isolation.

Availability

ADN4652BRWZ is available at Aetrix Electronics and suitable for industrial AFEs, isolated data planes, medical imaging subsystems, and test equipment requiring stable component supply with long-term lifecycle support.

Supply support for ADN4652BRWZ 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 precision instrumentation, industrial automation, and healthcare markets.

The ADN4652BRWZ belongs to the ADN465x family of high-speed LVDS isolators designed specifically for noise-immune, safety-certified data transmission in demanding industrial and medical systems.

FAQ

What is the isolation rating and safety certification status of the ADN4652BRWZ?

The ADN4652BRWZ provides 5 kV_RMS isolation for 1 minute in its 20-lead SOIC package (RW-20) and is certified to UL 1577, VDE 0884-17 (DIN EN IEC 60747-17), IEC/CSA 62368-1, IEC/CSA 60601-1 (1 MOPP), and IEC/CSA 61010-1. These approvals confirm its suitability for reinforced insulation in medical, industrial, and test equipment applications requiring high reliability and regulatory compliance.

Does the ADN4652BRWZ support both 2.5 V and 3.3 V supply configurations?

Yes, the ADN4652BRWZ supports dual-supply operation: it can be powered directly with 2.5 V on VDD1/VDD2, or accept 3.3 V on VIN1/VIN2 to enable its internal LDO, which regulates down to 2.5 V for core logic and LVDS circuitry. This flexibility allows seamless integration into mixed-voltage systems without external regulators - a key advantage confirmed in the ADN4652BRWZ datasheet's Recommended Operating Conditions table.

How does the fail-safe output function work on the ADN4652BRWZ?

The ADN4652BRWZ implements fail-safe logic that forces DOUTx± outputs high when differential input voltage |VID| falls below 100 mV - covering open-circuit, shorted, or terminated-but-undriven input conditions. This behavior is guaranteed per the datasheet's Truth Table and Fail-Safe Receiver section and ensures predictable, safe default states without external components, directly enhancing system robustness in cable-disconnect or fault scenarios.

What is the maximum data rate and jitter performance of the ADN4652BRWZ at full specification?

The ADN4652BRWZ supports up to 600 Mbps with 151 ps peak-to-peak total jitter (at BER 1 × 10⁻¹²) and 4.5 ns maximum propagation delay, all verified under worst-case conditions (−40°C to +125°C, 2.375 V to 2.625 V supplies). These values are measured using 2²³−1 PRBS patterns and reflect actual silicon performance - not typical-only metrics - ensuring design margin for high-speed serial links.

Can the ADN4652BRWZ replace non-isolated LVDS buffers in existing designs?

Yes, the ADN4652BRWZ is engineered for drop-in isolation of LVDS signal chains, maintaining TIA/EIA-644-A compliance, matching standard LVDS drive strength (250–450 mV differential), and preserving timing parameters like skew (<200 ps channel-to-channel) and rise/fall time (350 ps). Its pin-compatible footprint with industry-standard SOIC-20 packages enables retrofitting without PCB redesign - provided isolation barrier routing and ground separation are implemented per layout guidelines.