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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 provides outstanding performance characteristics superior to alternatives such as optocoupler devices.

By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design ...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

    • RESOURCES & TOOLS

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    • 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
    • # Ch: 2
    • iCouplerType: Standard
    • # of Inputs Side 1: 2
    • # of Inputs Side 2: 0
    • Max Data Rate(Mbps): 10Mbps
    • Package: 8-Lead SOIC
    • Insulation Rating (kVrms): 2.5kV rms
    • Max Operating Temp (°C): 105Deg
    • Pos Supply: +2.7V to +5.5V
    • Max Prop Delay (ns): 50ns

    Functional Block Diagram for ADuM1210

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    Part# # Ch # of Inputs Side 1 # of Inputs Side 2 Insulation Rating (kVrms) Max Data Rate(Mbps) Max Prop Delay (ns) Pos Supply Max Operating Temp (°C) Package Price* (1000-4999)
    ADUM1100 1 1 0 2.5 100 18 +3V to +5.5V 125 8-Lead SOIC $1.63
    ADUM1200 2 2 0 2.5 25 45 +2.7V to +5.5V 125 8-Lead SOIC $1.22
    ADUM1201 2 1 1 2.5 25 45 +2.7V to +5.5V 125 8-Lead SOIC $1.22
    ADUM1210 2 2 0 2.5 10 50 +2.7V to +5.5V 105 8-Lead SOIC $1.78
    ADUM1300 3 3 0 2.5 90 32 +2.7V to +5.5V 125 16-Lead SOIC $1.63
    ADUM1301 3 2 1 2.5 90 32 +2.7V to +5.5V 125 16-Lead SOIC $1.63
    ADUM1310 3 3 0 2.5 10 50 +2.7V to +5.5V 105 16-Lead SOIC $1.35
    ADUM1311 3 2 1 2.5 10 50 +2.7V to +5.5V 105 16-Lead SOIC $1.35
    ADUM1400 4 4 0 2.5 90 32 +2.7V to +5.5V 125 16-Lead SOIC $2.17
    ADUM1401 4 3 1 2.5 90 32 +2.7V to +5.5V 125 16-Lead SOIC $2.17
    ADUM1402 4 2 2 2.5 90 32 +2.7V to +5.5V 125 16-Lead SOIC $2.17
    ADUM1410 4 4 0 2.5 10 50 +2.7V to +5.5V 105 16-Lead SOIC $1.68
    ADUM1411 4 3 1 2.5 10 50 +2.7V to +5.5V 105 16-Lead SOIC $1.68
    ADUM1412 4 2 2 2.5 10 50 +2.7V to +5.5V 105 16-Lead SOIC $1.68
    ADUM1510 5 5 0 2.5 10 50 +4.5V to +5.5V 105 16-Lead SOIC $4.54
    ADUM2200 2 2 0 5 10 50 +3V to +5.5V 105 16-Lead SOIC $1.67
    ADUM2201 2 1 1 5 10 50 +3V to +5.5V 105 16-Lead SOIC $1.66
    ADUM2400 4 4 0 5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $3.20
    ADUM2401 4 3 1 5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $3.20
    ADUM2402 4 2 2 5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $3.20
    ADUM3100 1 1 0 2.5 50 28 +3V to +5.5V 105 8-Lead SOIC $1.71
    ADUM3200 2 2 0 2.5 25 45 +2.7V to +5.5V 105 8-Lead SOIC $1.28
    ADUM3201 2 1 1 2.5 25 45 +2.7V to +5.5V 105 8-Lead SOIC $1.28
    ADUM3210 2 2 0 2.5 10 50 +2.7V to +5.5V 125 8-Lead SOIC $0.93
    ADUM3211 2 1 1 2.5 10 50 +2.7V to +5.5V 125 8-Lead SOIC $0.93
    ADUM3300 3 3 0 2.5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $1.71
    ADUM3301 3 2 1 2.5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $1.71
    ADUM3400 4 4 0 2.5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $2.28
    ADUM3401 4 3 1 2.5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $2.28
    ADUM3402 4 2 2 2.5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $2.28
    ADUM3440 4 4 0 2.5 150 32 +3V to +5.5V 105 16-Lead SOIC $3.53
    ADUM3441 4 3 1 2.5 150 32 +3V to +5.5V 105 16-Lead SOIC $3.53
    ADUM3442 4 2 2 2.5 150 32 +3V to +5.5V 105 16-Lead SOIC $3.53
    ADUM4400 4 4 0 5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $3.36
    ADUM4401 4 3 1 5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $3.36
    ADUM4402 4 2 2 5 90 32 +2.7V to +5.5V 105 16-Lead SOIC $3.36
    ADUM7440 4 4 0 1 25 56 +3V to +5.5V 105 16-Lead QSOP $1.50
    ADUM7441 4 3 1 1 25 56 +3V to +5.5V 105 16-Lead QSOP $1.50
    ADUM7442 4 2 2 1 25 56 +3V to +5.5V 105 16-Lead QSOP $1.50
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