Datasheet REF2025, REF2030, REF2033, REF2041 (Texas Instruments) - 9
| 制造商 | Texas Instruments |
| 描述 | Low-Drift, Low-Power, Dual-Output, VREF and VREF / 2 Voltage References |
| 页数 / 页 | 35 / 9 — REF2025, REF2030, REF2033. , REF2041. www.ti.com. 7.6 Typical … |
| 文件格式/大小 | PDF / 3.9 Mb |
| 文件语言 | 英语 |
REF2025, REF2030, REF2033. , REF2041. www.ti.com. 7.6 Typical Characteristics (continued)
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REF2025, REF2030, REF2033 , REF2041 www.ti.com
SBOS600E – JULY 2018 – REVISED FEBRUARY 2022
7.6 Typical Characteristics (continued)
At TA = 25°C, IL = 0 mA, VIN = 5-V power supply, CL = 0 µF, and 2.5-V output, unless otherwise noted. 5 100 ) 4.5 /V m V p 80 BIAS (p 4 n ) tio B la (d V u REF 3.5 g R 60 e R S R e P 3 in L S 40 IA B 2.5 V 2 20 ±75 ±50 ±25 0 25 50 75 100 125 150 1 10 100 1k 10k 100k Temperature (ƒC) Frequency (Hz) C018 C026 VBIAS output CL = 0 µF
Figure 7-19. Line Regulation vs Temperature (VBIAS) Figure 7-20. Power-Supply Rejection Ratio vs Frequency
100 V V IN + 0.25 V IN + 0.25 V VBIAS 500 mV/div VIN - 0.25 V 80 ) VREF B VREF (d R 60 40 mV/div R S P 40 20 Time (500 µs/div) 1 10 100 1k 10k 100k Frequency (Hz) C027 C006 CL = 10 µF CL = 1 µF
Figure 7-21. Power-Supply Rejection Ratio vs Frequency Figure 7-22. Line Transient Response
V V IN + 0.25 V IN + 0.25V 500 mV/div V +1 mA +1 mA IN - 0.25V 2 mA/div - 1 mA VREF 40 mV/div VREF 20 mV/div Time (500 µs/div) Time (500 µs/div) C006 C032 CL = 10 µF CL = 1 µF IL = ±1-mA step
Figure 7-23. Line Transient Response Figure 7-24. Load Transient Response
Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: REF2025 REF2030 REF2033 REF2041 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions Pin 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 Results 10.2.1.3 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 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
SBOS600E – JULY 2018 – REVISED FEBRUARY 2022
7.6 Typical Characteristics (continued)
At TA = 25°C, IL = 0 mA, VIN = 5-V power supply, CL = 0 µF, and 2.5-V output, unless otherwise noted. 5 100 ) 4.5 /V m V p 80 BIAS (p 4 n ) tio B la (d V u REF 3.5 g R 60 e R S R e P 3 in L S 40 IA B 2.5 V 2 20 ±75 ±50 ±25 0 25 50 75 100 125 150 1 10 100 1k 10k 100k Temperature (ƒC) Frequency (Hz) C018 C026 VBIAS output CL = 0 µF
Figure 7-19. Line Regulation vs Temperature (VBIAS) Figure 7-20. Power-Supply Rejection Ratio vs Frequency
100 V V IN + 0.25 V IN + 0.25 V VBIAS 500 mV/div VIN - 0.25 V 80 ) VREF B VREF (d R 60 40 mV/div R S P 40 20 Time (500 µs/div) 1 10 100 1k 10k 100k Frequency (Hz) C027 C006 CL = 10 µF CL = 1 µF
Figure 7-21. Power-Supply Rejection Ratio vs Frequency Figure 7-22. Line Transient Response
V V IN + 0.25 V IN + 0.25V 500 mV/div V +1 mA +1 mA IN - 0.25V 2 mA/div - 1 mA VREF 40 mV/div VREF 20 mV/div Time (500 µs/div) Time (500 µs/div) C006 C032 CL = 10 µF CL = 1 µF IL = ±1-mA step
Figure 7-23. Line Transient Response Figure 7-24. Load Transient Response
Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 9 Product Folder Links: REF2025 REF2030 REF2033 REF2041 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions Pin 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 Results 10.2.1.3 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 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