Datasheet REF3425-EP (Texas Instruments) - 2
| 制造商 | Texas Instruments |
| 描述 | Enhanced product, 2.5-V, low-drift, low-power series voltage reference |
| 页数 / 页 | 28 / 2 — REF3425-EP. , REF3430-EP. , REF3433-EP,. REF3440-EP. www.ti.com. Table of … |
| 文件格式/大小 | PDF / 1.8 Mb |
| 文件语言 | 英语 |
REF3425-EP. , REF3430-EP. , REF3433-EP,. REF3440-EP. www.ti.com. Table of Contents. Features. Applications. Description. Revision History
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REF3425-EP , REF3430-EP , REF3433-EP, REF3440-EP
SBAS942B – DECEMBER 2018 – REVISED APRIL 2019
www.ti.com Table of Contents 1 Features
.. 1 9.2 Functional Block Diagram ... 13
2 Applications
... 1 9.3 Feature Description... 13
3 Description
... 1 9.4 Device Functional Modes.. 14
4 Revision History
... 2
10 Application and Implementation
.. 15
5 Device Comparison Table
... 3 10.1 Application Information.. 15 10.2 Typical Application: Basic Voltage Reference
6 Pin Configuration and Functions
... 3 Connection ... 15
7 Specifications
... 4
11 Power Supply Recommendations
... 17 7.1 Absolute Maximum Ratings .. 4
12 Layout
... 18 7.2 ESD Ratings.. 4 12.1 Layout Guidelines ... 18 7.3 Recommended Operating Conditions ... 4 12.2 Layout Example .. 18 7.4 Thermal Information .. 4
13 Device and Documentation Support
... 19 7.5 Electrical Characteristics... 5 13.1 Documentation Support .. 19 7.6 Typical Characteristics .. 7 13.2 Related Links .. 19
8 Parameter Measurement Information
.. 10 13.3 Receiving Notification of Documentation Updates 19 8.1 Solder Heat Shift ... 10 13.4 Community Resources.. 19 8.2 Long-Term Stability ... 11 13.5 Trademarks ... 19 8.3 Power Dissipation ... 11 13.6 Electrostatic Discharge Caution .. 19 8.4 Noise Performance ... 12 13.7 Glossary .. 19
9 Detailed Description
.. 13
14 Mechanical, Packaging, and Orderable
9.1 Overview ... 13
Information
... 20
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (March 2019) to Revision B Page
• Added information about long-term stability throughout the data sheet... 1 • Added long-term stability in Electrical Characteristics table... 5 • Added Long-Term Stability section in Parameter Measurement Information section .. 11
Changes from Original (December 2018) to Revision A Page
• Added new devices to the data sheet .. 1 2 Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated Product Folder Links: REF3425-EP REF3430-EP REF3433-EP REF3440-EP 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 Power Dissipation 8.4 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 Supply Voltage 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 9.4.1 EN Pin 9.4.2 Negative Reference Voltage 10 Application and Implementation 10.1 Application Information 10.2 Typical Application: Basic Voltage Reference Connection 10.2.1 Design Requirements 10.2.2 Detailed Design Procedure 10.2.2.1 Input and Output Capacitors 10.2.2.2 4-Wire Kelvin Connections 10.2.2.3 VIN Slew Rate Considerations 10.2.2.4 Shutdown/Enable Feature 10.2.3 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 Related Links 13.3 Receiving Notification of Documentation Updates 13.4 Community Resources 13.5 Trademarks 13.6 Electrostatic Discharge Caution 13.7 Glossary 14 Mechanical, Packaging, and Orderable Information
REF3425-EP , REF3430-EP , REF3433-EP, REF3440-EP
SBAS942B – DECEMBER 2018 – REVISED APRIL 2019
www.ti.com Table of Contents 1 Features
.. 1 9.2 Functional Block Diagram ... 13
2 Applications
... 1 9.3 Feature Description... 13
3 Description
... 1 9.4 Device Functional Modes.. 14
4 Revision History
... 2
10 Application and Implementation
.. 15
5 Device Comparison Table
... 3 10.1 Application Information.. 15 10.2 Typical Application: Basic Voltage Reference
6 Pin Configuration and Functions
... 3 Connection ... 15
7 Specifications
... 4
11 Power Supply Recommendations
... 17 7.1 Absolute Maximum Ratings .. 4
12 Layout
... 18 7.2 ESD Ratings.. 4 12.1 Layout Guidelines ... 18 7.3 Recommended Operating Conditions ... 4 12.2 Layout Example .. 18 7.4 Thermal Information .. 4
13 Device and Documentation Support
... 19 7.5 Electrical Characteristics... 5 13.1 Documentation Support .. 19 7.6 Typical Characteristics .. 7 13.2 Related Links .. 19
8 Parameter Measurement Information
.. 10 13.3 Receiving Notification of Documentation Updates 19 8.1 Solder Heat Shift ... 10 13.4 Community Resources.. 19 8.2 Long-Term Stability ... 11 13.5 Trademarks ... 19 8.3 Power Dissipation ... 11 13.6 Electrostatic Discharge Caution .. 19 8.4 Noise Performance ... 12 13.7 Glossary .. 19
9 Detailed Description
.. 13
14 Mechanical, Packaging, and Orderable
9.1 Overview ... 13
Information
... 20
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (March 2019) to Revision B Page
• Added information about long-term stability throughout the data sheet... 1 • Added long-term stability in Electrical Characteristics table... 5 • Added Long-Term Stability section in Parameter Measurement Information section .. 11
Changes from Original (December 2018) to Revision A Page
• Added new devices to the data sheet .. 1 2 Submit Documentation Feedback Copyright © 2018–2019, Texas Instruments Incorporated Product Folder Links: REF3425-EP REF3430-EP REF3433-EP REF3440-EP 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 Power Dissipation 8.4 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 Supply Voltage 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 9.4.1 EN Pin 9.4.2 Negative Reference Voltage 10 Application and Implementation 10.1 Application Information 10.2 Typical Application: Basic Voltage Reference Connection 10.2.1 Design Requirements 10.2.2 Detailed Design Procedure 10.2.2.1 Input and Output Capacitors 10.2.2.2 4-Wire Kelvin Connections 10.2.2.3 VIN Slew Rate Considerations 10.2.2.4 Shutdown/Enable Feature 10.2.3 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 Related Links 13.3 Receiving Notification of Documentation Updates 13.4 Community Resources 13.5 Trademarks 13.6 Electrostatic Discharge Caution 13.7 Glossary 14 Mechanical, Packaging, and Orderable Information