Analog Devices Inc. MAX22666 Low-Power 6-Channel Digital Isolators

Analog Devices Inc. MAX22666 Low-Power 6-Channel Digital Isolators are reinforced, fast, low-power digital galvanic isolators using Analog Devices’ proprietary process technology. All devices feature reinforced isolation with a withstand voltage rating of 5kVRMS for 60 seconds. These devices transfer digital signals between circuits with different power domains, using as little as 0.71mW per channel at 1Mbps (1.8V supply). MAX22666 features all six channels transmitting digital signals in one direction. The low-power feature reduces system dissipation, increases reliability, and enables compact designs. Both automotive and general-purpose devices are rated for operation within a -40°C to +125°C ambient temperature range.

Devices are available with a maximum data rate of either 25Mbps or 200Mbps and with default-high or -low outputs. The devices feature low propagation delay and low clock jitter, reducing system latency. Independent 1.71V to 5.5V supplies on each side also make the devices suitable for use as level translators.

Features

  • AEC-Q100 qualification for /V devices
  • Reinforced galvanic isolation for digital signals
    • Wide 16-SOIC with 8mm creepage and clearance
    • Withstands 5kVRMS for 60s (VISO)
    • Continuously withstands 848VRMS (VIOWM)
    • Withstands ±12.8kV surge between GNDA and GNDB with 1.2/50μs waveform
    • High CMTI (50kV/μs typical)
  • Low power consumption
    • 0.71mW per channel at 1Mbps with VDD = 1.8V
    • 1.34mW per channel at 1Mbps with VDD = 3.3V
    • 3.21mW per channel at 100Mbps with VDD = 1.8V
  • Low propagation delay and low jitter
    • Maximum data rate up to 200Mbps
    • Low 7ns typical propagation delay at VDD = 3.3V
    • 11.1ps typical clock jitter RMS
  • Safety regulatory approvals
    • UL according to UL1577
    • cUL according to CSA Bulletin 5A
    • VDE 0884-11 reinforced insulation (pending)

Applications

  • Automotive
    • Hybrid electric vehicles
    • Chargers
    • Battery Management Systems (BMS)
    • Inverters
  • Industrial
    • Isolated SPI, RS-232/422/485, CAN, and digital I/Os
    • Fieldbus communications
    • Motor control
    • Medical systems

Simplified Application Diagram

Application Circuit Diagram - Analog Devices Inc. MAX22666 Low-Power 6-Channel Digital Isolators

Analog Devices Inc. MAX22666 Low-Power 6-Channel Digital Isolators