SBOS466B December   2009  – December 2018 TMP20

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Block Diagram
    2.     Device Quiescent Current Over Temperature
  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 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 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 Transfer Function
        1. 7.3.1.1 Example 1
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Drive and Capacitive Loads
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  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 Device Support
      1. 11.1.1 TINA-TI (Free Download Software)
        1. 11.1.1.1 Using TINA-TI SPICE-Based Analog Simulation Program with the TMP20
      2. 11.1.2 Development Support
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.1.1 Output Drive and Capacitive Loads

When used in noisy environments, adding a capacitor from the output to ground with a series resistor filters the TMP20 output; this configuration is shown in Figure 11. The TMP20 can drive up to 1 nF of load capacitance while sourcing and sinking 600 μA. Under this condition, capacitive loads in the range of 1 nF to 10 μF require a 150-Ω series output resistor to achieve a stable temperature measurement. The output impedance of the TMP20 is typically 10 Ω when sinking currents and less than 1 Ω when sourcing current, as shown in Figure 1.

TMP20 ai_filtering_ex_bos466.gif
1.

NOINDENT:

A series resistor (R) may be required depending upon the amount of capacitance (C) and the amount of source and sink current drawn from the output of the TMP20.
Figure 11. TMP20 Output Filtering