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1B22:  Programmable, Isolated Voltage-to-Current Converter

Product Details

The 1B22 is an isolated voltage-to-current converter that incorporates transformer isolation to achieve high performance and automated surface mount manufacturing for low cost and increased reliability. Designed for industrial applications, it is especially suited for harsh environments with extremely high common mode interference. With programmable inputs and outputs, the 1B22 provides an unbeatable combination of versatility and performance in a compact plastic package.

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

    • Internal Isolated Loop Supply Drives 1000 Ω Load
    • Pin Programmable Inputs: 0 V to +5 V or 0 V to +10 V
    • Pin Programmable Outputs: 4 to 20 mA or 0 to 20 mA
    • High CMV Isolation: 1500 V RMS
    • Normal-Mode Output Protection: 240 V RMS
    • High Accuracy
      Low Offset Tempco: ±300nA/°C
      Low Gain Tempco: ±50ppm/°C
      Low Nonlinearity: ±0.02%
      High CMR: 90dB min
    • Small Package: 1.0"x2.10"x0.35"
    • Meets IEEE std. 472: CMV Transient Protection (SWC)

    Functional Block Diagram for 1B22

    Of Note ...

    For information on accessories for the 1B22, please visit the AC1225 product page.


    Title Content Type File Type
    1B22: Programmable, Isolated Voltage-to-Current Converter Data Sheet (Rev B, 10/2006) (pdf, 224 kB) Data Sheets PDF
    IOS Custom Product Worksheet
    As a Design Subcontractor, IOS believes it essential to engage with our customers early in the development cycle. Complete the form and it will be reviewed and you will be contacted by one of our design specialists.
    Custom Product Worksheet HTML
    IOS 3 Year Warranty  (pdf, 23 kB) Overview PDF
    IOS Short Form Brochure  (pdf, 2298 kB) Overview PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

    Evaluation Kits & Symbols & Footprints

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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    Price, packaging, availability

    1B22 Model Options
    Price Table Help

    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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