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LM4040 Precision Micropower Shunt Voltage Reference
SLOS456O
January 2005 – June 2024
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CONTENTS
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LM4040 Precision Micropower Shunt Voltage Reference
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
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
LM4040A20I, LM4040B20I Electrical Characteristics
6.6
LM4040C20I, LM4040D20I Electrical Characteristics
6.7
LM4040C20Q, LM4040D20Q Electrical Characteristics
6.8
LM4040A25I, LM4040B25I Electrical Characteristics
6.9
LM4040C25I, LM4040D25I Electrical Characteristics
6.10
LM4040C25Q, LM4040D25Q Electrical Characteristics
6.11
LM4040A30I, LM4040B30I Electrical Characteristics
6.12
LM4040C30I, LM4040D30I Electrical Characteristics
6.13
LM4040C30Q, LM4040D30Q Electrical Characteristics
6.14
LM4040A41I, LM4040B41I Electrical Characteristics
6.15
LM4040C41I, LM4040D41I Electrical Characteristics
6.16
LM4040A50I, LM4040B50I Electrical Characteristics
6.17
LM4040C50I, LM4040D50I Electrical Characteristics
6.18
LM4040C50Q, LM4040D50Q Electrical Characteristics
6.19
LM4040A82I, LM4040B82I Electrical Characteristics
6.20
LM4040C82I, LM4040D82I Electrical Characteristics
6.21
LM4040A10I, LM4040B10I Electrical Characteristics
6.22
LM4040C10I, LM4040D10I Electrical Characteristics
6.23
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.4
Device Functional Modes
7.4.1
Shunt Reference
8
Applications and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
LM4040 Voltage and Accuracy Choice
8.2.2.2
Cathode and Load Currents
8.2.2.3
Output Capacitor
8.2.2.4
SOT-23 Connections
8.2.2.5
Start-Up Characteristics
8.2.3
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Related Links
9.2
Trademarks
9.3
Electrostatic Discharge Caution
9.4
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
封装选项
机械数据 (封装 | 引脚)
DCK|5
MPDS025I
LP|3
MSOT002D
DBZ|3
MPDS108G
散热焊盘机械数据 (封装 | 引脚)
订购信息
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Data Sheet
LM4040 Precision Micropower Shunt Voltage Reference
1
特性
2.048V、2.5V、3V、4.096V、5V、8.192V 和 10V 的固定输出电压
严格输出容差和低温度系数
0.1%（最大值），100ppm/°C - A 级
0.2%（最大值），100ppm/°C - B 级
0.5%（最大值），100ppm/°C – C 级
1.0%（最大值），150ppm/°C - D 级
低输出噪声：35μV
RMS
典型值
宽工作电流范围：45μA（典型值）至 15mA
与所有容性负载一起工作时保持稳定；无需输出电容器
工作温度范围：-40°C 至 125°C
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