GENERAL DESCRIPTION

The ADN46241 is a quad-channel, signal isolated, low voltage

differential signaling (LVDS) buffer that operates at up to 2.5 Gbps

with very low jitter. The device integrates Analog Devices, Inc.,

iCoupler® technology, enhanced for high speed operation to provide

drop-in galvanic isolation of LVDS signal chains. AC coupling

and/or level shifting to the LVDS receivers and from the LVDS

drivers allows isolation of other high speed signals such as current

mode logic (CML).

The ADN4624 includes a refresh mechanism to monitor the input

and output states and ensure they remain the same in the absence

of data transitions (for example, at power-on).

For lower power consumption and high speed operation with low

jitter, the LVDS and isolator circuits rely on 1.8 V supplies. The

ADN4624 is fully specified over a wide industrial temperature range

and is available in a 28-lead, wide-body, finer pitch SOIC_W_FP

package with 8.3 mm creepage and clearance (for 5.7 kV rms or 8

kVPEAK surge and impulse voltages and reinforced insulation at ac

mains voltages) or 6 mm × 6 mm LFCSP package with 1.27 mm

creepage and clearance (for basic/functional isolation).

FEATURES

► 5.7 kV rms and 1.5 kV rms LVDS isolators

► Complies with TIA/EIA-644-A LVDS signal levels

► Quad-channel configuration

► Any data rate up to 2.5 Gbps switching with low jitter

► 10 Gbps total bandwidth across four channels

► 2.15 ns typical propagation delay

► Typical jitter: 0.82 ps rms random, 40 ps total peak

► Lower power 1.8 V supplies

► ±8 kV IEC 61000-4-2 ESD protection across isolation barrier

► High common-mode transient immunity: 100 kV/μs typical

► Safety and regulatory approvals (28-lead SOIC_W_FP package)

► UL (pending): 5700 V rms for 1 minute per UL 1577

► CSA Component Acceptance Notice 5A (pending)

► VDE certificate of conformity (pending)

► DIN V VDE V 0884-11 (VDE V 0884-11):2017-01

► VIORM = 849 VPEAK (working voltage)

► Enable or disable refresh (low speed output correctness check)

► Operating temperature range: −40°C to +125°C

► 28-lead, wide-body, finer pitch SOIC_W_FP package with 8.3

mm creepage and clearance or 6 mm × 6 mm LFCSP package

with 1.27 mm creepage and clearance

APPLICATIONS

► Isolated video and imaging data

► Analog front-end isolation

► Data plane isolation

► Isolated high speed clock and data links

► Multi-gigabit serialization/deserialization (SERDES)

► Board-to-board optical replacement (for example, short reach fiber)