Datasheet REF20-Q1 (Texas Instruments) - 2

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REF20-Q1
SBOSA80 – DECEMBER 2021
www.ti.com Table of Contents 1 Features
..1 9.2 Functional Block Diagram... 18
2 Applications
... 1 9.3 Feature Description...18
3 Description
...1 9.4 Device Functional Modes..19
4 Revision History
.. 2
10 Applications and Implementation
.. 20
5 Device Comparison Table
...3 10.1 Application Information... 20
6 Pin Configuration and Functions
...4 10.2 Typical Application.. 20
7 Specifications
.. 5
11 Power-Supply Recommendations
..26 7.1 Absolute Maximum Ratings.. 5
12 Layout
...27 7.2 ESD Ratings... 5 12.1 Layout Guidelines... 27 7.3 Recommended Operating Conditions...5 12.2 Layout Example.. 27 7.4 Thermal Information..5
13 Device and Documentation Support
..28 7.5 Electrical Characteristics...6 13.1 Documentation Support.. 28 7.6 Typical Characteristics.. 7 13.2 Receiving Notification of Documentation Updates..28
8 Parameter Measurement Information
.. 14 13.3 Support Resources... 28 8.1 Solder Heat Shift...14 13.4 Trademarks...28 8.2 Long-Term Stability... 15 13.5 Electrostatic Discharge Caution..28 8.3 Thermal Hysteresis... 16 13.6 Glossary..28 8.4 Noise Performance... 17
14 Mechanical, Packaging, and Orderable 9 Detailed Description
..18
Information
.. 28 9.1 Overview... 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE REVISION NOTES
December 2021 * Initial Release 2 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: REF20-Q1 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Recommended Operating Conditions 7.4 Thermal Information 7.5 Electrical Characteristics 7.6 Typical Characteristics 8 Parameter Measurement Information 8.1 Solder Heat Shift 8.2 Long-Term Stability 8.3 Thermal Hysteresis 8.4 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 VREF and VBIAS Tracking 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 10 Applications and Implementation 10.1 Application Information 10.2 Typical Application 10.2.1 Low-Side, Current-Sensing Application 10.2.1.1 Design Requirements 10.2.1.2 Detailed Design Procedure 10.2.1.2.1 Shunt Resistor 10.2.1.2.2 Differential Amplifier 10.2.1.2.3 Voltage Reference 10.2.1.2.4 Error Calculations 10.2.1.2.5 Application Curves 11 Power-Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Documentation Support 13.1.1 Related Documentation 13.2 Receiving Notification of Documentation Updates 13.3 Support Resources 13.4 Trademarks 13.5 Electrostatic Discharge Caution 13.6 Glossary 14 Mechanical, Packaging, and Orderable Information