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LOG114

更新时间: 2024-11-28 11:06:39
品牌 Logo 应用领域
德州仪器 - TI 放大器运算放大器
页数 文件大小 规格书
21页 571K
描述
具有 2.5V 基准电压和非限定输出运算放大器的精密高速对数放大器

LOG114 数据手册

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User's Guide  
SBOU110September 2011  
LOG114EVM User Guide  
This user's guide describes the characteristics, operation, and use of the LOG114EVM evaluation board. It  
discusses how to set up and configure the board hardware, and reviews various methods of using the  
evaluation module (EVM). Throughout this document, the terms evaluation board, evaluation module, and  
EVM are synonymous with the LOG114EVM. This document also includes an electrical schematic, printed  
circuit board (PCB) layout drawings, and a parts list for the EVM.  
Contents  
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Overview ..................................................................................................................... 2  
LOG114EVM ................................................................................................................ 3  
Connecting to the LOG114EVM .......................................................................................... 7  
Using the LOG114EVM ................................................................................................... 11  
Verifying Results ........................................................................................................... 12  
LOG114EVM Documentation ............................................................................................ 13  
List of Figures  
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LOG114EVM ................................................................................................................  
LOG114EVM Level Shifter.................................................................................................  
LOG114EVM Signal Path..................................................................................................  
High-Current Linearity Correction Circuit ................................................................................  
LOG114EVM Complete Circuit............................................................................................  
Connecting the 5V Power Supply.........................................................................................  
Using a Photodiode with the High-Current Linearity Correction Circuitry ...........................................  
Using a Photodiode Without the High-Current Linearity Correction Circuitry .......................................  
Applying a 0.5-V Reverse Bias to the Photodiode......................................................................  
Using a Resistor to Create an Input Current ............................................................................  
Using a Resistor and the High Current Linearity Correction Circuitry .............................................. 10  
LOG114EVM Components............................................................................................... 11  
LOG114EVM Measured Results ........................................................................................ 12  
LOG114EVM Board Schematic.......................................................................................... 13  
LOG114EVM: Top Side Composite Drawing .......................................................................... 14  
LOG114EVM: Top Copper Layer ....................................................................................... 14  
LOG114EVM: Bottom Copper Layer.................................................................................... 14  
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All trademarks are the property of their respective owners.  
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SBOU110September 2011  
LOG114EVM User Guide  
Submit Documentation Feedback  
Copyright © 2011, Texas Instruments Incorporated  

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