SBVS020C September   2000  – February 2020 REF200

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Functional Block Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Electrical Characteristics
    5. 6.5 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Temperature Drift
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Lead Resistance Cancelation (3-Wire RTD)
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2.1 Design Requirements

The design requirements are as follows:

  • Supply Voltage: 5 V
  • RTD temperature range: –50°C to +125°C
  • RTD resistance range 80.3 Ω to 147.9 Ω
  • Output: 0.1 V to 4.9 V

The design goals and performance are summarized in Table 1. Figure 15 depicts the measured transfer function of the design.

Table 1. Comparison of Design Goals, Calculations, Simulation, and Measured Performance

VOUT RTD GOAL CALCULATED SIMULATED MEASURED
VOUT maximum scale 80.3 Ω 0.1 V 0.112 V 0.117 V 0.11 3 V
VOUT minimum scale 142.9 Ω 4.9 V 4.83 V 4.82 V 4.862 V
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