Features and Benefits

  • Complete RTD Signal Conditioning Solution
  • Resistor Programmable Linearization
  • Lead Resistance Compensation
  • High CMV Isolation: 1500 V rms Continuous
  • Small package: 1.0"x2.1"x0.35" DIP
  • Low pass filter (fc=3Hz)
  • High Accuracy
    Low Input Offset Tempco: 0.002µ/°C
    Linearization Conformance: ±0.1%FSR
    High CMR: 160dB (60 Hz,G=1000V/V)
  • Pin compatible with 1B51 Isolated mV/Thermocouple Conditioner

Product Details

The 1B41 is a precision, isolated, RTD signal conditioner that incorporates a 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 measurement and control applications, it is especially suited for harsh environments with extremely high common mode interference. Unlike expensive solutions that require separate dc/dc converters, each 1B41 generates its own floating current excitation, providing true low cost channel-to channel isolation.


  • Multichannel RTD Temperature Measurement
  • Industrial Measurement and Control Systems
  • Data Acquisition System
  • Product Lifecycle icon-recommended Last Time Buy

    All products in this family will be obsolete soon. Please contact ADI Sales or Distributors to arrange for final purchases and read our Obsolescence Information to review the time periods for placing final orders and receiving final shipments.

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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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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