GENERAL DESCRIPTION

The ADN4622/ADN46241 are quad-channel, signal isolated, lowvoltage

differential signaling (LVDS) buffers that operate at up to

2.5 Gbps with very low jitter. The devices integrate 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 ADN4622/ADN4624 include a refresh mechanism to monitor

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

the absence of data transitions. For lower power consumption and

high-speed operation with low jitter, the LVDS and isolator circuits

rely on 1.8 V supplies. The ADN4622/ADN4624 are fully specified

over a wide industrial temperature range and are 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 (ADN4622: 2 + 2, ADN4624: 4 + 0)

► 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 SERDES

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