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Analog Devices / Maxim Integrated MAX12930 & MAX12931 Two-Channel Digital Isolators

Analog Devices MAX12930 and MAX12931 Two-Channel Digital Isolators transfer digital signals between circuits with different power domains while using as little as 0.65mW per channel at 1Mbps with 1.8V. The two channels of the MAX12930 and MAX12931 transfer data in opposite directions, making these devices ideal for isolating a transceiver's TX and RX lines. The Analog Devices MAX12930 and MAX12931 have a maximum data rate of either 25Mbps or 150Mbps, and the default outputs are either high or low. The default is the state the output assumes when the input is not powered or if the input is open-circuit. Independent 1.71V to 5.5V supplies on each side of the isolator make the devices suitable for use as level translators.

The Analog Devices MAX12930 and MAX12931 are available in an 8-pin, narrow-body SOIC package. In addition, the MAX12931 is available in a 16-pin, wide-body SOIC package. The 8-pin narrow-body SOIC package has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables. The 16-pin wide-body SOIC package has a CTI of 600V, which gives it a group I rating in creepage tables. All devices are rated for operation at ambient temperatures of -40°C to +125°C.

Features

  • Robust galvanic isolation of digital signals
    • Wide-body variant withstands 5kVRMS for 60s (VISO)
    • Narrow-body withstands 3kVRMS for 60s (VISO)
    • Wide-body variant continuously withstands 848VRMS (VIOWM)
    • Narrow-body variant continuously withstands 445VRMS (VIOWM)
    • Withstands ±10kV surge between GNDA and GNDB with 2/50µs waveform
    • High CMTI (50kV/µs, typical)
  • Options to support a broad range of applications
    • 2 data rates (25Mbps/150Mbps)
    • 2 channel direction configurations
    • 2 output default states (high or low)
  • Low power consumption
    • 3mW per channel at 1Mbps with VDD = 3.3V
    • 3mW per channel at 100Mbps with VDD = 1.8V
  • Safety regulatory approvals
    • UL according to UL1577
    • cUL according to CSA Bulletin 5A
    • VDE 0884-10 Basic
  • Physical characteristics
    • -40°C to +125°C operating temperature range
    • Package options
      • Narrow-body SOIC-8 (MAX12930 and MAX12931)
      • Wide-body SOIC-16 (MAX12931 only)

Applications

  • Fieldbus communications for industrial automation
  • Isolated RS232, RS-485/RS-422, CAN
  • General isolation applications
  • Battery management
  • Medical systems

Resources

Development Tools

Analog Devices / Maxim Integrated MAX12930 & MAX12931 Evaluation Kits

Provides a proven design to evaluate the MAX12931 two channel digital isolator.

Learn Moreà propos de Analog Devices / Maxim Integrated MAX12930 & MAX12931 Evaluation Kits View Productslié à Analog Devices / Maxim Integrated MAX12930 & MAX12931 Evaluation Kits

MAX12930/MAX12931 Block Diagram

Block Diagram - Analog Devices / Maxim Integrated MAX12930 & MAX12931 Two-Channel Digital Isolators
Publié le: 2016-11-02 | Mis à jour le: 2023-04-11