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模拟电子  高精度I2C实时时钟的设计

Abstract: This application note presents an overview of the operational characteristics of accurate I&sup2;C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forpower management, I&sup2;C communi ...

https://www.eeworm.com/dl/571/21071.html

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模拟电子  校准ADC内部偏移的光学微控制器DS4830

Abstract: The DS4830 optical microcontroller&#39;s analog-to-digital converter (ADC) offset can change with temperature and gainselection. However, the DS4830 allows users to measure the ADC internal offset. The measured ADC offset is added to the ADCoffset register to nullify the offset error. Th ...

https://www.eeworm.com/dl/571/21135.html

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模拟电子  利用数字电位器调整并校准升压型DC-DC转换器

The purpose of this application note is to show an example of how a digital potentiometer can be used in thefeedback loop of a step-up DC-DC converter to provide calibration and/or adjustment of the output voltage.The example circuit uses a MAX5025 step-up DC-DC converter (capable of generating up ...

https://www.eeworm.com/dl/571/21189.html

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模拟电子  加载,感应DAC应用

Abstract: This article discusses application circuits for Maxim force/sense digital-to-analog converters (DACs). Applications include:selectable fixed-gain DAC, programmable gain DAC, photodiode bias control, amperometric sensor control, digitally programmablecurrent source, Kelvin load sensing, t ...

https://www.eeworm.com/dl/571/21192.html

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模拟电子  精密DAC和看门狗提高模拟输出安全

Abstract: Using a DAC and a microprocessor supervisor, the system safety can be improved in industrial controllers, programmablelogiccontrollers (PLC), and data-acquisition systems. The analog output is set to zero-scale (or pin-programmable midscale) when amicroprocessor failure, optocoupler fail ...

https://www.eeworm.com/dl/571/21258.html

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模拟电子  Stabilize Your Transimpedance Amplifier

&nbsp; Abstract: Transimpedance amplifiers (TIAs) are widely used to translate the current output of sensors like photodiode-to-voltagesignals, since several circuits and instruments can only accept voltage input. An operational amplifier with a feedback resistor fromoutput to the inverting inpu ...

https://www.eeworm.com/dl/571/21297.html

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模拟电子  你的PLD是亚稳态吗

  This application note provides a detailed description of themetastable behavior in PLDs from both circuit and statisticalviewpoints. Additionally, the information on the metastablecharacteristics of Cypress PLDs presented here can help youachieve any desired degree of reliability.

https://www.eeworm.com/dl/571/21308.html

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模拟电子  RF至数字接收器的信号链噪声分析

&nbsp; Designers of signal receiver systems often need to performcascaded chain analysis of system performancefrom the antenna all the way to the ADC. Noise is a criticalparameter in the chain analysis because it limits theoverall sensitivity of the receiver. An application&rsquo;s noiserequirem ...

https://www.eeworm.com/dl/571/21323.html

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模拟电子  DA转换接口的射频IQ调制

&nbsp; Linear Technology&rsquo;s High Frequency Product lineupincludes a variety of RF I/Q modulators. The purpose ofthis application note is to illustrate the circuits requiredto interface these modulators with several popular D/Aconverters. Such circuits typically are required to maximizethe v ...

https://www.eeworm.com/dl/571/21334.html

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模拟电子  数据采集电路分析

&nbsp; This application note features 8-, 10-, and 12-bit dataacquisition components in various circuit configurations.The circuits include battery monitoring, temperature sensing,isolated serial interfaces, and microprocessor andmicrocontroller serial and parallel interfaces. Also includedare v ...

https://www.eeworm.com/dl/571/21337.html

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