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Analog Devices / Maxim Integrated MAX12935 Digital Isolators

Analog Devices MAX12935 Digital Isolators feature robust galvanic isolation for fast digital signals with up to a 200Mbps data rate. The MAX12935 are fast, low-power, 2-channel digital isolators made using Analog Devices' proprietary process technology.

The devices use as little as 0.65mW per channel at 1Mbps while transferring digital signals between circuits with different power domains. The devices use two channels to transfer data in opposite directions making them ideal for isolating the TX and RX lines of a transceiver.

Features

  • Robust Galvanic Isolation for Fast Digital Signals
    • 200Mbps Data Rate
    • Withstands 5kVRMS for the 60s (VISO)
    • Continuously Withstands 848VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50μs Waveform
    • High CMTI (50kV/μs Typical)
  • Low Power Consumption
    • 1.3mW per Channel at 2Mbps with
    • VDD = 3.3V
    • 3.3mW per Channel at 100Mbps with VDD = 1.8V
  • Options to Support a Broad Range of Applications
    • 2 Data Rates (25Mbps/200Mbps)
    • 2 Channel Direction Configurations
    • 2 Output Default States (High or Low)

Applications

  • Fieldbus Communications for Industrial Automation
  • Isolated RS232, RS-485/RS-422, CAN
  • General Isolation Application
  • Battery Management
  • Medical Systems

Block Diagram

Analog Devices / Maxim Integrated MAX12935 Digital Isolators
Publicado: 2017-12-05 | Actualizado: 2023-04-12