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Analog Devices / Maxim Integrated MAX1493x 4-Channel Digital Isolators

Analog Devices Inc. MAX1493x 4-Channel Digital Isolators are digital isolators utilizing ADI’s proprietary process technology. The MAX14930–MAX14932 are 2.75kVRMS and 3.75kVRMS digital isolators, and the MAX14130–MAX14131 are 1kVRMS digital isolators in smaller footprint QSOP packages. The MAX14930–MAX14932 transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C. These devices also offer all three possible unidirectional channel configurations to accommodate any 4-channel design, including SPI, RS-232, RS-485, and digital I/O applications. These devices are available with data rates from DC up to 1Mbps, 25Mbps, or 150Mbps. Each ADI MAX1493x is also available in either a default high or default low configuration. The default is the state an output goes to when its input is unpowered.

Features

  • Robust galvanic isolation of digital signals
    • Withstands 1kVRMS for 60s (VISO) (MAX14130–MAX14131)
    • Withstands 2.75kVRMS for 60s (VISO) (MAX14930–MAX14932)
    • Continuously withstands 445VRMS(VIOWM(MAX14930–MAX14932)
    • 630VP repetitive peak voltage (VIORM)(MAX14930–MAX14932)
    • Withstands ±10kV surge per IEC 61000-4-5
  • Many options support broad applications
    • 3 Data rates (1Mbps, 25Mbps, 150Mbps)
    • 3 Channel direction configuration
    • 2 Output default states (high or low)
    • 3 Packages (3.8mm, 4mm, or 8mm creepage and clearance)
  • Interfaces directly with most micros and FPGAs
    • Accepts 1.71V to 5.5V supplies
  • Low power consumption at high data rates
    • At 1.8V
      • 2.5mA per channel typical at 1Mbps
      • 5.25mA per channel typical at 100Mbps
    • At 3.3V
      • 2.6mA per channel typical at 1Mbps
      • 7.1mA per channel typical at 100Mbps

Applications

  • Fieldbus communications for industrial automation
  • Isolated SPI, RS-232, RS-485/RS-422
  • General multichannel isolation applications
  • Battery management
  • Medical systems

Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX1493x 4-Channel Digital Isolators

Associated Tool

Analog Devices / Maxim Integrated MAX1493x Evaluation Kits

Demonstrates the functionality of the MAX1493x 4-channel, unidirectional, digital isolators.

Learn Moreo Analog Devices / Maxim Integrated MAX1493x Evaluation Kits View Productspowiązany z Analog Devices / Maxim Integrated MAX1493x Evaluation Kits

Additional Resource

Opublikowano: 2015-06-29 | Zaktualizowano: 2023-04-17