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Home > Other > LVDS Digital Isolators serve in harsh industrial environments.

LVDS Digital Isolators serve in harsh industrial environments.

Published time: 2020-01-15 14:21:10

LVDS Digital Isolators serve in harsh industrial environments.

NORWOOD, Mass. – Analog Devices, Inc. today introduced a low-voltage differential signal (LVDS) digital isolator series designed to improve performance, reliability and power consumption in industrial instrumentation and programmable logic controller (PLC) applications that previously required redesign of the interface to support LVDS signal isolation. Incorporating ADI’s award-winning iCoupler® digital isolator technology, the ADN465x series ensures safety and reliability through proven galvanic isolation in a single package while delivering data throughput rates of 600 Mbps (up to four times faster than competing digital isolators), ultralow jitter at 70 ps, and 4.5-ns max propagation delay. With ADN465x devices, high-speed serial LVDS signals can now be directly isolated without needing to deserialize as compared to previous custom implementations. Design resources and time are saved by offering an off-the-shelf, high-performance, LVDS-compatible solution.

In industrial PLC backplanes, data generated from an increasing number of sensors is distributed between processing nodes for improved control, while also maintaining robustness to interference for system dependability. With ultra-low jitter of 70 ps, full compliance to the TIA/EIA-644-A standard, reinforced insulation with surge protection tested at 10 kVpk, and the ability to withstand voltage ratings up to 5 kVrms, the new LVDS digital isolators enable advanced I/O extension integration across meters of cable at high signal rates.

Real time analysis of grid supply is paramount as server farm density increases to support the ever-increasing rise in consumption. Smart power quality analyzers that enable real-time analysis require precise data at high speeds. In addition to supporting up to 600-Mbps data rates, ADN465x LVDS digital isolators support 300-MHz clocks to enable isolation of precision convertors with LVDS interfaces. Source synchronous interfaces are supported with low channel-to-channel skew of 200 ps. Ultra-low additive phase jitter of 380 fs enables A/D converter sampling clocks to be isolated while maintaining low aperture jitter for full A/D converter performance and resolution.

LVDS Digital Isolators Key Features

600-Mbps throughput, 4.5-ns max propagation delay, 70-ps total jitter
LVDS I/O, high-speed isolator and LDO for flexible 2.5/3.3V supply combined in a single SOIC-W package
10-kVpk basic and 6-kV reinforced surge protection ratings, 5 KVrms withstand, 350-Vrms working voltage
3-channel configurations, LVDS fail-safe options, flexible 2.5/3.3V supply

Pricing and Availability

Product Availability Fail Safe
Receiver
Inputs
Total Channels Price
Each per
1,000
Packaging
ADN4650 Now No Dual-Channel
(same direction)
$5.50 20-lead
SOIC-W
ADN4651 Now Yes Dual-Channel
(one each direction)
$5.50 20-lead
SOIC-W
ADN4652 April 2016 Yes Dual-Channel
(one each direction opposite pin-out)
$5.50 20-lead
SOIC-W

About Analog Devices
Analog Devices (NASDAQ: ADI) designs and manufactures semiconductor products and solutions. We enable our customers to interpret the world around us by intelligently bridging the physical and digital with unmatched technologies that sense, measure and connect.

iCoupler® is a registered trademark of Analog Devices, Inc.

EngineerZone is a registered trademark of Analog Devices, Inc.

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