ADN4656 5 kV RMS/3.75 kV RMS, Dual LVDS Gigabit Isolator (First Channel Reversed)

Product Details

The ADN4654/ADN4655/ADN4656 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.

Applications

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

Features and Benefits

  • 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