GENERAL DESCRIPTION
The ADN4654/ADN4655/ADN46561 are signal isolated, low voltage differential signaling (LVDS) buffers that operate at up to 1.1 Gbps with low jitter. The devices integrate Analog Devices, Inc., iCoupler® technology, enhanced for high speed operation to provide galvanic isolation of the TIA/EIA-644-A compliant LVDS drivers and receivers. This integration allows drop-in isolation of an LVDS signal chain. The ADN4654/ADN4655/ADN4656 comprise multiple
channel configurations, and the LVDS receivers on the ADN4655 and ADN4656 include a fail-safe mechanism to ensure a Logic
1 on the corresponding LVDS driver output when the inputs are floating, shorted, or terminated but not driven.
For high speed operation with low jitter, the LVDS and isolator circuits rely on a 2.5 V supply. An integrated on-chip low dropout
(LDO) regulator can provide the required 2.5 V from an external 3.3 V power supply. The devices are fully specified over a wide
industrial temperature range and come in a 20-lead, wide body SOIC_W package with 5 kV rms isolation or in a 20-lead SSOP
package with 3.75 kV rms isolation.

FEATURES 5 kV rms and 3.75 kV rms LVDS isolators
Complies with TIA/EIA-644-A LVDS standard Multiple dual-channel configurations
Any data rate up to 1.1 Gbps switching with low jitter
4 ns typical propagation delay 2.6 ps rms typical random jitter, rms 90 ps typical peak-to-peak total jitter at 1.1 Gbps
2.5 V or 3.3 V supplies −75 dBc power supply ripple rejection, phase spur level Glitch immunity ±8 kV IEC 61000-4-2 ESD protection across isolation barrier
High common-mode transient immunity: >25 kV/μs Passes EN 55022 Class B radiated emissions limits with
1.1 Gbps PRBS
Safety and regulatory approvals (20-lead SOIC_W package)
UL (pending): 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A (pending) VDE certificate of conformity (pending)
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 424 VPEAK
Fail-safe output high for open, short, and terminated input conditions (ADN4655/ADN4656) Operating temperature range: −40°C to +125°C 7.8 mm minimum creepage and clearance

APPLICATIONS
Isolated video and imaging data
Analog front-end isolation
Data plane isolation
Isolated high speed clock and data links