Datasheet REF20-Q1 (Texas Instruments) - 7
| Manufacturer | Texas Instruments |
| Description | Automotive low-drift, low-power, series voltage reference |
| Pages / Page | 36 / 7 — REF20-Q1. www.ti.com. 7.6 Typical Characteristics. Figure 7-1. Initial … |
| File Format / Size | PDF / 3.4 Mb |
| Document Language | English |
REF20-Q1. www.ti.com. 7.6 Typical Characteristics. Figure 7-1. Initial Accuracy Distribution (VREF)
Model Line for this Datasheet
Text Version of Document
REF20-Q1 www.ti.com
SBOSA80 – DECEMBER 2021
7.6 Typical Characteristics
At TA = 25°C, IL = 0 mA, VIN = 5 V power supply, CL = 0 µF, and 2.5 V output, unless otherwise noted. 70 50 60 40 50 (%) (%) 30 n 40 n tio tio la la u 30 u p p o 20 o P P 20 10 10 0 5 4 3 2 1 0 1 2 3 4 5 0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 0 1 2 3 4 5 6 7 8 -0 -0 -0 -0 -0 0 0 0 0 0 VREF Drift Distribution (ppm/ƒC) V Initial Accuracy (%) REF C010 C015 –40°C ≤ TA ≤ 125°C
Figure 7-1. Initial Accuracy Distribution (VREF) Figure 7-2. Drift Distribution (VREF)
80 50 70 40 60 50 (%) (%) 30 n n tio 40 tio la la u u p p o 30 20 o P P 20 10 10 0 5 4 3 2 1 0 1 2 3 4 5 0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 0 1 2 3 4 5 6 7 8 -0 -0 -0 -0 -0 0 0 0 0 0 VBIAS Drift Distribution (ppm/ƒC) V Initial Accuracy (%) BIAS C008 C015 –40°C ≤ TA ≤ 125°C
Figure 7-3. Initial Accuracy Distribution (VBIAS) Figure 7-4. Drift Distribution (VBIAS)
40 60 50 30 40 (%) (%) n n tio 20 tio 30 la la u u p p o o P P 20 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 8 6 4 2 2 4 6 8 0 1 2 3 4 5 6 7 1 ± ± ± ± ± VREF and VBIAS Tracking Over Temperature (ppm/ƒC) V and V Matching (ppm) REF BIAS C004 C017 –40°C ≤ TA ≤ 125°C
Figure 7-5. VREF – 2 × VBIAS Distribution Figure 7-6. Distribution of VREF – 2 × VBIAS Drift Tracking Over Temperature
Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 7 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
SBOSA80 – DECEMBER 2021
7.6 Typical Characteristics
At TA = 25°C, IL = 0 mA, VIN = 5 V power supply, CL = 0 µF, and 2.5 V output, unless otherwise noted. 70 50 60 40 50 (%) (%) 30 n 40 n tio tio la la u 30 u p p o 20 o P P 20 10 10 0 5 4 3 2 1 0 1 2 3 4 5 0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 0 1 2 3 4 5 6 7 8 -0 -0 -0 -0 -0 0 0 0 0 0 VREF Drift Distribution (ppm/ƒC) V Initial Accuracy (%) REF C010 C015 –40°C ≤ TA ≤ 125°C
Figure 7-1. Initial Accuracy Distribution (VREF) Figure 7-2. Drift Distribution (VREF)
80 50 70 40 60 50 (%) (%) 30 n n tio 40 tio la la u u p p o 30 20 o P P 20 10 10 0 5 4 3 2 1 0 1 2 3 4 5 0 .0 .0 .0 .0 .0 .0 .0 .0 .0 .0 0 1 2 3 4 5 6 7 8 -0 -0 -0 -0 -0 0 0 0 0 0 VBIAS Drift Distribution (ppm/ƒC) V Initial Accuracy (%) BIAS C008 C015 –40°C ≤ TA ≤ 125°C
Figure 7-3. Initial Accuracy Distribution (VBIAS) Figure 7-4. Drift Distribution (VBIAS)
40 60 50 30 40 (%) (%) n n tio 20 tio 30 la la u u p p o o P P 20 10 10 0 0 0 0 0 0 0 0 0 0 0 0 0 8 6 4 2 2 4 6 8 0 1 2 3 4 5 6 7 1 ± ± ± ± ± VREF and VBIAS Tracking Over Temperature (ppm/ƒC) V and V Matching (ppm) REF BIAS C004 C017 –40°C ≤ TA ≤ 125°C
Figure 7-5. VREF – 2 × VBIAS Distribution Figure 7-6. Distribution of VREF – 2 × VBIAS Drift Tracking Over Temperature
Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 7 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
