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1B21:  ISOLATED, LOOP-POWERED VOLTAGE-TO-CURRENT CONVERTER

The 1B21 is an isolated voltage-to-current converter that incorporates a unique circuit design utilizing transformer based isolation and automated surface mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for individual applications, it is especially suited for harsh environments with extremely high ...More

1B21:  ISOLATED, LOOP-POWERED VOLTAGE-TO-CURRENT CONVERTER

Product Description

The 1B21 is an isolated voltage-to-current converter that incorporates a unique circuit design utilizing transformer based isolation and automated surface mount manufacturing technology. It provides an unbeatable combination of versatility and performance in a compact plastic package. Designed for individual applications, it is especially suited for harsh environments with extremely high common-mode interference.

Applications
  • Multichannel Process Control
  • D/A Converter - Current Loop Interface
  • Analog Transmitters and Controllers
  • Remote Data Acquisition System

    • RESOURCES & TOOLS

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    • Wide Input Range: 0-1V to 0-10V
    • High CMV Isolation: 1500V rms
    • Programmable Output Ranges: 4mA to 20mA 0 to 20mA
    • Load Resistance Range: 0 to 1.35kΩ max
    • High Accuracy
      Low Offset Tempco: ±300nA/°C
      Low Gain Tempco: ±50ppm/°C
      Low Nonlinearity: ±0.02%
      High CMR: 90dB min
    • Small Package: 0.7"x2.1"x0.35"
    • Meets IEEE std. 472: Transient Protection (SWC)
    • Supply Voltage (v): ±15V
    • Input Type: Vin
    • Input Range: 0-1V to 0-10V
    • Isolated: Y
    • Bandwidth (Hz): 100Hz
    • Output Type: I
    • Output Range : 4-20mA, 0-20mA

    Functional Block Diagram for 1B21

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    For detailed drawings and chemical composition please consult our  Package Site

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    Temperature Range
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    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
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    • Automotive: -40 to +125 degrees Celsius
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    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.