概览

优势和特点

  • 5.7 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, fine pitch SOIC-FP package with 8.3 mm creepage and clearance

产品详情

The ADN4624 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, fine pitch SOIC-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).

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)

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