ADUM1311:  Triple-Channel Digital Isolators

The ADuM131x* are 3-channel digital isolators based on Analog Devices, Inc. iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation ...More

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ADUM1311:  Triple-Channel Digital Isolators

Product Description

The ADuM131x* are 3-channel digital isolators based on Analog Devices, Inc. iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.

By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, maximum operating temperature, and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The iCoupler also offers higher channel densities and more options for channel directionality.

The ADuM131x isolators provide three independent isolation channels in a variety of channel configurations and data rates up to 10 Mbps (see the Ordering Guide). All models operate with the supply voltage on either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. All products allow the user to predetermine the default output state in the absence of input VDD1 power with a simple control pin. Unlike other optocoupler alternatives, the ADuM131x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/ power-down conditions.

*Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents pending.

Applications

  • General-purpose multichannel isolation
  • SPI interface/data converter isolation
  • RS-232/RS-422/RS-485 transceiver
  • Industrial field bus isolation

    • Features

    • Bidirectional communication
    • 3 V/5 V level translation
    • Schmitt trigger inputs
    • High temperature operation: 105°C

    Low power operation

    • 5 V operation
      1.7 mA per channel maximum @ 0 Mbps to 2 Mbps
      4.0 mA per channel maximum @ 2 Mbps to 10 Mbps
    • 3 V operation
      1.0 mA per channel maximum @ 0 Mbps to 2 Mbps
      2.1 mA per channel maximum @ 2 Mbps to 10 Mbps
    • Up to 10 Mbps data rate (NRZ)
    • Programmable default output state
    • High common-mode transient immunity: >25 kV/µs
    • 16-lead, RoHS-compliant, SOIC wide body package
    • 8.1 mm external creepage

    Safety and regulatory approvals

    • UL recognition: 2500 V rms for 1 minute per UL 1577
    • CSA Component Acceptance Notice #5A
    • VDE certificate of conformity
      DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
      VIORM = 560 V peak working voltage

    Diagrams

    ADuM1311 Diagram
    Functional Block Diagram for ADuM1311

    Характеристики

    Max Operating Temp (°C) 105Deg
    Min Output Voltage (V) 2.7V
    Max Output Voltage (V) 5.5V
    Output Default State High
    Insulation Rating (kVrms) 2.5kV rms
    # Ch 3
    Max Prop Delay (ns) 32ns

    Посмотреть другие компоненты

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    ADUM3210 - Dual-Channel Digital Isolator, Enhanced System-Level ESD Reliability

    ADUM5000 - Isolated DC/DC Converter

    ADUM5200 - Dual-Channel Isolators with Integrated DC-to-DC Converter

    Получать уведомление о новинках More
    Part# Features # Ch Max Data Rate(Mbps) Resolution (Bits) Insulation Rating (kVrms) Isolation Voltage (Vrms) Max Operating Temp (°C) Pulse Width Distort (ns) Max Prop Delay (ns) Pos Supply Min Output Voltage (V) Max Output Voltage (V) Output Default State Serial Clock Package Output Power (mW) iCouplerType Price* (1000-4999)
    AD7400 Isolated Sigma-Delta Modulator - 10 16 - - - - - +4.5V to +5.5V - - - - 16-Lead SOIC - - $4.05
    AD7401 Isolated Sigma-Delta Modulator - 10 16 - - - - - +4.5V to +5.5V - - - - 16-Lead SOIC - - $4.05
    ADM2483 RS-485 Transceiver/Half Duplex 1 0.5 - 2.5 - 85 - - +2.7V to +5.5V 1.5 5 Z - 16-Lead SOIC - - $3.04
    ADM2485 RS-485 Transeiver 1 16 - 2.5 - 85 - - +2.7V to +5.5V 2.1 5 Z - 16-Lead SOIC - - $5.57
    ADM2486 RS-485 Transceiver/Half Duplex w/ Transformer Driver 1 20 - 2.5 - 85 - - +2.7V to +5.5V - - Z - 16-Lead SOIC - - $5.04
    ADM2490E RS-485 Transceiver/Full Duplex 1 16 - 5 - 105 - - +2.7V to +5.5V - - High - 16-Lead SOIC - - $4.55
    ADUM1100 Standard Digital Isolator 1 100 - 2.5 2.5 125 2 18