3.3V/5V 100MBd High Speed CMOS Digital Isolator

The ACML-74x0 series, from Avago Technologies, is a family of multi-channel high-speed CMOS digital isolators. Using magnetic coupling through a thick insulation barrier, these CMOS digital isolators help enable high-speed transmissions without compromise to isolation performance. These CMOS digital isolators consume a small amount of power, even at high data rates, yet provide transient immunity performance in compact surface-mount packages. These CMOS digital isolators are qualified to a maximum propagation delay of 36ns and a maximum pulse width distortion of 3ns. They are also capable of running at a 100MBd data rate.

Our CMOS digital isolator devices are available in 16-pin SOIC wide-body packages. They operate at dual 3.3V or 5V supply voltages. The DC and timing are specified over the temperature range of -40° C to +105° C. The quad-channel ACML-7420 CMOS digital isolator is configured as a bi-directional device, with two channels in one direction and two channels in the reverse direction. The ACML-7420, along with the ACML-7400 and ACML-7410 digital isolators, is also built using CMOS input buffers and CMOS output drivers helping to eliminate the need for both input limiters and output pull-up resistors. Refresh circuitry is built in to ensure DC-correctness.


Pb-free options


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Features [+-]

  • Dual supply voltage compatible – 3.3 V & 5 V
  • Wide operating temperature range (-40° C to +105° C)
  • Support high speed data rate of at least 100 MBd
  • Lower power consumption – 15 mA per channel typical
  • Low propagation delay: 36 ns max
  • Low propagation delay skew
  • – Channel-to-channel: 4 ns max
    – Part-to-part: 8 ns max
  • Low pulse width distortion: 3 ns max
  • Safety and Regulatory Approvals
  • UL Recognised
    – 5600 VRMS for 1 min. per UL1577
    – CSA Component Acceptance Notice #5
    IEC 60950-1
    – Basic Insulation, 800 VRMS max. working voltage
    – Reinforced Insulation, 400 VRMS max. working voltage
    IEC 61010-1
    – Basic Insulation, 800 VRMS max. working voltage
    – Reinforced Insulation, 400 VRMS max. working voltage
    IEC 60601-1
    – 2 Means of Patient Protection, 250 VRMS max. working voltage
    – 2 Means of Operator Protectioin, 400 VRMS max. working voltage
  • High Common Mode Transient Immunity – 25 kV/µs min.
  • CMOS buffer input and output
  • DC correctness
  • Lead-free

Applications [+-]

  • Isolated data interfaces
  • Data acquisition
  • Digital oscilloscopes
  • Power meters and analyzers
  • High speed video transmission

Documents [+-]

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