ADUM1210:  Dual-Channel Digital Isolator

The ADuM1210* is a dual-channel, digital isolator based on Analog Devices, Inc. iCoupler® technology. Combining high speed CMOS and monolithic transformer technology, this isolation component ...More

ADUM1210:  Dual-Channel Digital Isolator

Product Description

The ADuM1210* is a dual-channel, digital isolator based on Analog Devices, Inc. iCoupler® technology. Combining high speed CMOS and monolithic transformer technology, this isolation component provides 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 concerns of the typical optocoupler regarding uncertain current transfer ratios, nonlinear transfer functions, and 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 iCoupler products. Furthermore, iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.

The ADuM1210 isolator provides two independent isolation channels operable with the supply voltage on either side, ranging from 2.7 V to 5.5 V. This provides compatibility with lower voltage systems and enables voltage translation functionality across the isolation barrier. In addition, the ADuM1210 provides low pulse width distortion (<3 ns) and tight channel-to-channel matching (<3 ns). Unlike other optocoupler alternatives, the ADuM1210 isolator has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions. Furthermore, as an alternative to the ADuM1200 dual-channel digital isolator that defaults to an output high condition, the ADuM1210 outputs default to a logic low state when input power is off.

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

Applications

  • Size-critical multichannel isolation
  • SPI interface/data converter isolation
  • RS-232/RS-422/RS-485 transceiver isolation
  • Digital field bus isolation
  • Gate drive interface

    • Features

    • Narrow body, RoHS-compliant, 8-lead SOIC
    • 3 V/5 V level translation
    • High temperature operation: 105°C
    • High data rate: dc to 10 Mbps (NRZ)

    Low power operation

    • 5 V operation
      1.1 mA per channel maximum @ 0 Mbps to 2 Mbps
      3.7 mA per channel maximum @ 10 Mbps
    • 3 V operation
      0.8 mA per channel maximum @ 0 Mbps to 2 Mbps
      2.2 mA per channel maximum @ 10 Mbps
    • Precise timing characteristics
      3 ns maximum pulse width distortion
      3 ns maximum channel-to-channel matching
    • High common-mode transient immunity: >25 kV/µs
    • 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

    Diagrams

    ADuM1210 Diagram
    Functional Block Diagram for ADuM1210

    技术指标

    Max Operating Temp (°C) 105Deg
    Min Output Voltage (V) 2.7V
    Max Output Voltage (V) 5.5V
    Output Default State Low
    Insulation Rating (kVrms) 2.5kV rms
    # Ch 2
    Pulse Width Distort (ns) 3ns
    Max Prop Delay (ns) 50ns

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    订阅新产品资料 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 +3V to +5.5V 3 5.5 High - 8-Lead SOIC