摘要：本應(yīng)用筆記詳細介紹了一款基本iButton數(shù)據(jù)記錄器，說明了該產(chǎn)品如何記錄溫度和/或濕度數(shù)據(jù)，并且給出了典型應(yīng)用實例。本文說明了數(shù)據(jù)記錄器的配置、測試，以及如何通過...

摘要：隨著安全性需求不斷滲透到電子系統(tǒng)設(shè)計的各個環(huán)節(jié)，制造商和電路設(shè)計人員面臨著前所未有的挑戰(zhàn)。問題的核心在于在新的應(yīng)用中增加前所未有的安全及防篡改措施，還需...

摘要：溫度測量應(yīng)用中，熱電偶因其堅固性、可靠性以及較快的響應(yīng)速度得到了普遍應(yīng)用。本應(yīng)用筆記討論了熱電偶的基本工作原理，包括參考端(冷端)的定義和功能。本文還給出了...

摘要：本文介紹了一種基于尋址協(xié)議的低成本串行總線系統(tǒng)，用來識別丟失元件的物理位置。在測量或控制串行總線中可能存在這樣的問題，例如：多點溫度測量系統(tǒng)。本文詳細介...

Implementi...

摘要：Thermochron® (DS1922L、DS1922T、DS1921G)和Hygrochron™ (DS1923) iButton®數(shù)據(jù)記錄器可理想用于多個領(lǐng)域。由于具有不銹鋼外殼，這些器件尤其適合用于惡劣環(huán)境。但是，實際應(yīng)用...

要：軍用設(shè)備，特別是便攜式軍用設(shè)備(例如：無線電臺)，密鑰的物理安全性至關(guān)重要。選擇使用特殊設(shè)計的元器件能夠滿足實際應(yīng)用的標準要求，并可提供額外的保護措施。這些元...

要：軍用設(shè)備，特別是便攜式軍用設(shè)備(例如：無線電臺)，密鑰的物理安全性至關(guān)重要。選擇使用特殊設(shè)計的元器件能夠滿足實際應(yīng)用的標準要求，并可提供額外的保護措施。這些元...

摘要：DS2784獨立式電量計為鋰離子(Li+)電池提供過壓及過流保護功能。然而，一些新型鋰離子應(yīng)用還需要熱保護。本文介紹了如何在DS2784典型應(yīng)用電路中加入MAX6506溫度傳感器和MAX4613...

摘要：MAX1452/MAX1455是高精度、低成本信號調(diào)理器，工作在數(shù)字模式時可以進行系統(tǒng)級生產(chǎn)，工作在模擬模式時可以進行常規(guī)操作。應(yīng)用電路中，根據(jù)VDD引腳供電電源的驅(qū)動能力，器...

摘要：本應(yīng)用筆記介紹了嵌入式應(yīng)用中的四類1-Wire主機電路，并討論了它們與備用(即未用)系統(tǒng)資源相關(guān)的性能與要求。文中給出的電路適用于半徑不超過1米，只掛接少量1-Wire從器...

摘要：本應(yīng)用筆記介紹了在測量芯片外部溫度的情況下，優(yōu)化MAX1358/MAX1359/MAX1360數(shù)據(jù)采集系統(tǒng)溫度讀數(shù)精度的解決方案。 引言MAX1358/MAX1359/MAX1360數(shù)據(jù)采集系統(tǒng)內(nèi)...

Abstract: For safety reasons we keep our circuits referenced to our surroundings. In most cases this is earth ground. This application note explains how a proper understanding of local circuit ground as a reference point frees our thinking...

Abstract: This application note analyses the parameters that affect the errors in precision digital-to-analog converter (DAC) applications. The analysis focuses on the factors introduced by both the data converter and the voltage reference...

Abstract: The DS18B20 and DS18S20 are two very popular 1-Wire digital thermometers. This application note explains the similarities and differences between these two parts, and guides customers in selecting the best part for an application...

Abstract: This article examines the use of instrumentation amplifiers (IAs) for sensor applications. It highlights system challenges and implementation choices, describes new architectures for integrated-circuit IAs, and outlines applicati...

Abstract: This application note describes crystal selection and layout techniques for connecting a 32,768Hz crystal to a real-time clock (RTC). It also provides information about oscillator circuit-design criteria, system design, and manuf...

This application note explains how to implement a 12-bit digital thermometer using a low-cost, 8-bit microcontroller (µC) and the MPASM free assembler. The thermometer displays temperature in the range of 0°C to 70°C with ±1°C ac...

Abstract: This application note describes how to reduce current consumption when using the DS32kHz with Dallas Real-Time Clocks (RTCs). OverviewThis application note is intended to answer some frequently asked ...

Abstract: A real-time clock (RTC) allows a system to synchronize or time-stamp events to a time reference that can be easily understood by the user. Because RTCs are used in an increasing number of applications, designers should familiariz...