Datasheet REF35 (Texas Instruments) - 3
| Manufacturer | Texas Instruments |
| Description | 650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference |
| Pages / Page | 44 / 3 — REF35. www.ti.com. 4 Device Comparison. PRODUCT. VREF. SOT-23 (6). WCSP … |
| File Format / Size | PDF / 2.2 Mb |
| Document Language | English |
REF35. www.ti.com. 4 Device Comparison. PRODUCT. VREF. SOT-23 (6). WCSP (4). 5 Pin Configuration and Functions. Figure 5-1. DBV Package
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Text Version of Document
REF35 www.ti.com
SNAS809C – DECEMBER 2021 – REVISED SEPTEMBER 2024
4 Device Comparison PRODUCT VREF SOT-23 (6) WCSP (4)
REF35102QDBVR REF35102YBHR 1.024V REF35120QDBVR REF35120YBHR 1.2V REF35125QDBVR REF35125YBHR 1.25V REF35160QDBVR REF35160YBHR 1.6V REF35170QDBVR - 1.7V REF35180QDBVR REF35180YBHR 1.8V REF35205QDBVR - 2.048V REF35250QDBVR REF35250YBHR 2.5V REF35300QDBVR REF35300YBHR 3.0V REF35330QDBVR - 3.3V REF35360QDBVR - 3.6V REF35409QDBVR REF35409YBHR 4.096V REF35500QDBVR - 5.0V
5 Pin Configuration and Functions
VREF VIN GND 1 VREF 6 A1 A2 GND 2 5 NR GND EN EN 3 4 VIN B1 B2 Not to scale
Figure 5-1. DBV Package 6-Pin SOT-23
Not to scale
Top View Figure 5-2. YBH Package 4-Pin WCSP Top View Table 5-1. Pin Functions PIN TYPE DESCRIPTION NAME SOT-23 WCSP
Device ground connection. For DBV package pin 1 and pin 2 are GND 1 B1 Ground internally short. GND 2 - Ground Device ground connection. EN 3 B2 Input Enable connection. Enables or disables the device. VIN 4 A2 Power Input supply voltage connection. Noise reduction pin. Connect a capacitor to reduce noise. This pin can be NR 5 - Output left floating. VREF 6 A1 Output Reference voltage output. Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: REF35 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Device Comparison 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Electrical Characteristics YBH package 6.7 Typical Characteristics 7 Parameter Measurement Information 7.1 Solder Heat Shift 7.2 Temperature Coefficient 7.3 Long-Term Stability 7.4 Thermal Hysteresis 7.5 Noise Performance 7.5.1 Low-Frequency (1/f) Noise 7.5.2 Broadband Noise 7.6 Power Dissipation 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Supply Voltage 8.3.2 EN Pin 8.3.3 NR Pin 8.4 Device Functional Modes 8.4.1 Basic Connections 8.4.2 Start-Up 8.4.3 Output Transient Behavior 9 Application and Implementation 9.1 Application Information 9.2 Typical Applications 9.2.1 Negative Reference Voltage 9.2.2 Precision Power Supply and Reference 9.2.2.1 Design Requirements 9.2.2.2 Detailed Design Procedure 9.2.2.2.1 Selection of Reference 9.2.2.2.2 Input and Output Capacitors 9.2.2.2.3 Selection of ADC 9.2.2.3 Application Curves 9.3 Power Supply Recommendations 9.4 Layout 9.4.1 Layout Guidelines 9.4.2 Layout Examples 10 Device and Documentation Support 10.1 Documentation Support 10.1.1 Related Documentation 10.2 Receiving Notification of Documentation Updates 10.3 Support Resources 10.4 Trademarks 10.5 Electrostatic Discharge Caution 10.6 Glossary 11 Revision History 12 Mechanical, Packaging, and Orderable Information
SNAS809C – DECEMBER 2021 – REVISED SEPTEMBER 2024
4 Device Comparison PRODUCT VREF SOT-23 (6) WCSP (4)
REF35102QDBVR REF35102YBHR 1.024V REF35120QDBVR REF35120YBHR 1.2V REF35125QDBVR REF35125YBHR 1.25V REF35160QDBVR REF35160YBHR 1.6V REF35170QDBVR - 1.7V REF35180QDBVR REF35180YBHR 1.8V REF35205QDBVR - 2.048V REF35250QDBVR REF35250YBHR 2.5V REF35300QDBVR REF35300YBHR 3.0V REF35330QDBVR - 3.3V REF35360QDBVR - 3.6V REF35409QDBVR REF35409YBHR 4.096V REF35500QDBVR - 5.0V
5 Pin Configuration and Functions
VREF VIN GND 1 VREF 6 A1 A2 GND 2 5 NR GND EN EN 3 4 VIN B1 B2 Not to scale
Figure 5-1. DBV Package 6-Pin SOT-23
Not to scale
Top View Figure 5-2. YBH Package 4-Pin WCSP Top View Table 5-1. Pin Functions PIN TYPE DESCRIPTION NAME SOT-23 WCSP
Device ground connection. For DBV package pin 1 and pin 2 are GND 1 B1 Ground internally short. GND 2 - Ground Device ground connection. EN 3 B2 Input Enable connection. Enables or disables the device. VIN 4 A2 Power Input supply voltage connection. Noise reduction pin. Connect a capacitor to reduce noise. This pin can be NR 5 - Output left floating. VREF 6 A1 Output Reference voltage output. Copyright © 2024 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: REF35 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Device Comparison 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Electrical Characteristics YBH package 6.7 Typical Characteristics 7 Parameter Measurement Information 7.1 Solder Heat Shift 7.2 Temperature Coefficient 7.3 Long-Term Stability 7.4 Thermal Hysteresis 7.5 Noise Performance 7.5.1 Low-Frequency (1/f) Noise 7.5.2 Broadband Noise 7.6 Power Dissipation 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Supply Voltage 8.3.2 EN Pin 8.3.3 NR Pin 8.4 Device Functional Modes 8.4.1 Basic Connections 8.4.2 Start-Up 8.4.3 Output Transient Behavior 9 Application and Implementation 9.1 Application Information 9.2 Typical Applications 9.2.1 Negative Reference Voltage 9.2.2 Precision Power Supply and Reference 9.2.2.1 Design Requirements 9.2.2.2 Detailed Design Procedure 9.2.2.2.1 Selection of Reference 9.2.2.2.2 Input and Output Capacitors 9.2.2.2.3 Selection of ADC 9.2.2.3 Application Curves 9.3 Power Supply Recommendations 9.4 Layout 9.4.1 Layout Guidelines 9.4.2 Layout Examples 10 Device and Documentation Support 10.1 Documentation Support 10.1.1 Related Documentation 10.2 Receiving Notification of Documentation Updates 10.3 Support Resources 10.4 Trademarks 10.5 Electrostatic Discharge Caution 10.6 Glossary 11 Revision History 12 Mechanical, Packaging, and Orderable Information
