Datasheet REF3425-EP (Texas Instruments) - 7
| Manufacturer | Texas Instruments |
| Description | Enhanced product, 2.5-V, low-drift, low-power series voltage reference |
| Pages / Page | 28 / 7 — REF3425-EP. , REF3430-EP,. REF3433-EP,. REF3440-EP. www.ti.com. 7.6 … |
| File Format / Size | PDF / 1.8 Mb |
| Document Language | English |
REF3425-EP. , REF3430-EP,. REF3433-EP,. REF3440-EP. www.ti.com. 7.6 Typical Characteristics. Figure 1. VIN vs IQ Over Temperature
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REF3425-EP , REF3430-EP, REF3433-EP, REF3440-EP www.ti.com
SBAS942B – DECEMBER 2018 – REVISED APRIL 2019
7.6 Typical Characteristics
at TA = 25°C, VIN = VEN = 12 V, IL = 0 mA, CL = 10 µF, CIN = 0.1 µF (unless otherwise noted) 81 79.5 2.6 V 5 V 80 3.3 V 12 V 79 ) 79 ) A A P P 78.5 t ( 78 t ( en en 78 urr 77 urr 76 77.5 ent C ent C c c 75 77 Quies Quies 74 76.5 73 76 72 -55 -35 -15 5 25 45 65 85 105 125 -55 -35 -15 5 25 45 65 85 105 125 Temperature (qC) Temperature (qC) D004 D003
Figure 1. VIN vs IQ Over Temperature Figure 2. Quiescent Current vs Temperature
-20 800 CL = 1uF C 720 L = 10uF (dB) -40 640 tio a R 560 z) H tion -60 480 ec ej (nV/v 400 R -80 se oi 320 N upply S 240 er -100 160 ow P 80 -120 0 10 100 1k 10k 100k 10 100 1k 10k 100k Frequency (Hz) Frequency(Hz) D005 D009
Figure 3. Power-Supply Rejection Ratio vs Frequency Figure 4. Noise Performance 10 Hz to 10 kHz
ILOAD ILOAD +1mA +1mA +1mA +1mA -1mA -1mA 1mA/div 1mA/div VOUT VOUT 4mV/div 4mV/div 250µs/div 250µs/div (C (C L = 1µF, IOUT = 1mA) D010 L = 10µF, IOUT = 1mA) D010
Figure 5. Load Transient Figure 6. Load Transient
Copyright © 2018–2019, Texas Instruments Incorporated Submit Documentation Feedback 7 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
SBAS942B – DECEMBER 2018 – REVISED APRIL 2019
7.6 Typical Characteristics
at TA = 25°C, VIN = VEN = 12 V, IL = 0 mA, CL = 10 µF, CIN = 0.1 µF (unless otherwise noted) 81 79.5 2.6 V 5 V 80 3.3 V 12 V 79 ) 79 ) A A P P 78.5 t ( 78 t ( en en 78 urr 77 urr 76 77.5 ent C ent C c c 75 77 Quies Quies 74 76.5 73 76 72 -55 -35 -15 5 25 45 65 85 105 125 -55 -35 -15 5 25 45 65 85 105 125 Temperature (qC) Temperature (qC) D004 D003
Figure 1. VIN vs IQ Over Temperature Figure 2. Quiescent Current vs Temperature
-20 800 CL = 1uF C 720 L = 10uF (dB) -40 640 tio a R 560 z) H tion -60 480 ec ej (nV/v 400 R -80 se oi 320 N upply S 240 er -100 160 ow P 80 -120 0 10 100 1k 10k 100k 10 100 1k 10k 100k Frequency (Hz) Frequency(Hz) D005 D009
Figure 3. Power-Supply Rejection Ratio vs Frequency Figure 4. Noise Performance 10 Hz to 10 kHz
ILOAD ILOAD +1mA +1mA +1mA +1mA -1mA -1mA 1mA/div 1mA/div VOUT VOUT 4mV/div 4mV/div 250µs/div 250µs/div (C (C L = 1µF, IOUT = 1mA) D010 L = 10µF, IOUT = 1mA) D010
Figure 5. Load Transient Figure 6. Load Transient
Copyright © 2018–2019, Texas Instruments Incorporated Submit Documentation Feedback 7 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
