The MAX5713/MAX5714/MAX5715 4-channel, low-power,8-/10-/12-bit, voltage-output DigITal-to-analog converters(DACs) include output buffers and an internal referencethat is selectable to be 2.048V, 2.500V, or 4.096V. TheMAX5713/MAX5714/MAX5715 accept a wide supplyvoltage range of 2.7V to 5.5V with extremely low power(3mW) consumption to accommodate most low-voltageapplications. A precision external reference input allowsrail-to-rail operation and presents a 100kI (typ) load toan external reference.
標(biāo)簽: MAX 5713 5715 數(shù)據(jù)資料
上傳時(shí)間: 2013-12-23
上傳用戶:ArmKing88
Abstract: This tutorial discusses methods for digitally adjusting the output voltage of a DC-DC converter. The digital adjustmentmethods are with a DigITal-to-analog converter (DAC), a trim pot (digital potentiometer), and PWM output of a microprocessor.Each method is assessed and several DACs and digital potentiometers presented.
標(biāo)簽: DCDC 數(shù)控 便攜產(chǎn)品 中的應(yīng)用
上傳時(shí)間: 2013-11-20
上傳用戶:zycidjl
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, temperature sensing, and high current DAC output. A brief description of the various DAC outputconfigurations is also given.
標(biāo)簽: DAC
上傳時(shí)間: 2013-11-04
上傳用戶:youmo81
DigITal-to-analog converters (DACs) are prevalent inindustrial control and automated test applications.General-purpose automated test equipment often requiresmany channels of precisely controlled voltagesthat span several voltage ranges. The LTC2704 is ahighly integrated 16-bit, 4-channel DAC for high-endapplications. It has a wide range of features designed toincrease performance and simplify design.
上傳時(shí)間: 2013-11-22
上傳用戶:元宵漢堡包
計(jì)算機(jī)應(yīng)用中,有時(shí)需處理的信息不是數(shù)字量,而是一些隨時(shí)間連續(xù)變化的模擬量,甚至是一些非電量,如溫度、壓力、速度等。模擬量的存儲(chǔ)處理困難。首先將非電的模擬信號(hào)變成與之對(duì)應(yīng)的模擬電信號(hào),這要通過各種傳感器來完成。計(jì)算機(jī)可處理的信息均是數(shù)字量(電脈沖信號(hào))1和0,必須把要處理的模擬電量轉(zhuǎn)換成數(shù)字化的電信號(hào),這需要模擬(Analog)與數(shù)字(Digital)轉(zhuǎn)換電路。數(shù)字到模擬轉(zhuǎn)換:(Digital to Analog Convert, D/A) D/A轉(zhuǎn)換電路是模擬電路加上電子開關(guān)。D/A轉(zhuǎn)換電路的核心是一個(gè)運(yùn)算放大器。運(yùn)算放大器的特性:(Operation Amplifier) K->無窮大, V和->0 傳遞函數(shù):V0 = -Vi * R0/Ri Ii->0, I和=If梯形R-2R電阻網(wǎng)絡(luò)D/A轉(zhuǎn)換器Ki受一個(gè)8位二進(jìn)制代碼控制 某位為1,對(duì)應(yīng)開關(guān)K倒向右邊; 某位為0,對(duì)應(yīng)開關(guān)K倒向左邊。Ki不論倒向哪邊,均為接地VA-VH 的電位為: VREF,1/2VREF,..1/128VREFVO= -VREF *(1/2K7+1/4K6+…+1/256K0)V0= -(0-255/256)VREF 8位D/A轉(zhuǎn)換器DAC0830系列器件國家半導(dǎo)體公司(NS)產(chǎn)品,0830、0831、0832。R-2R梯形電阻網(wǎng)絡(luò)D/A轉(zhuǎn)換器,雙緩沖結(jié)構(gòu)。單電源、低功耗、電流建立時(shí)間1uS。與微計(jì)算機(jī)接口方便。8位D/A轉(zhuǎn)換器DAC0830系列器件ILE: 輸入鎖存允許; WR1#: 加載IN REG; WR2#: 加載DAC REG; XFER#: IN REG傳到DAC REG; Iout1,Iout2: 外接OA輸入; Rfb: 反饋電阻接OA輸出; VREF: 參考電源,控制輸出電壓變化范圍。
標(biāo)簽: AD轉(zhuǎn)換
上傳時(shí)間: 2013-10-16
上傳用戶:lu2767
在單片機(jī)應(yīng)用系統(tǒng)中,常用到模擬輸出,數(shù)模D/A轉(zhuǎn)換器(Digital to Analog Converter)是一種能把數(shù)字量轉(zhuǎn)換成模擬量的電子器件
標(biāo)簽: 單片機(jī) 應(yīng)用系統(tǒng)
上傳時(shí)間: 2016-04-11
上傳用戶:talenthn
This paper presents the key circuits of a 1MHz bandwidth, 750kb/s GMSK transmitter. The fractional-N synthesizer forming the basis of the transmitter uses a combined phasefrequency detector (PFD) and DigITal-to-analog converter (DAC) circuit element to obtain >28dB high frequency noise reduction when compared to classicalfrequency synthesis.
標(biāo)簽: fractional-N transmitter bandwidth circuits
上傳時(shí)間: 2016-04-14
上傳用戶:er1219
12bit 低功耗DAC 數(shù)模轉(zhuǎn)換器 The MAX5302 combines a low-power, voltage-output, 12-bit DigITal-to-analog converter (DAC) and a precision output amplifier in an 8-pin μMAX package. It operates from a single +5V supply, drawing less than 280μA of supply current.
上傳時(shí)間: 2017-02-21
上傳用戶:ckbihu
Chapter 1:Introduction and Overview Chapter 2:Switches,Buttons,and Knob 開關(guān)按鈕Chapter 3:Clock Sources 時(shí)鐘脈沖源Chapter 4:FPGA Configuration Options 配置Chapter 5:Character LCD Screen LCD顯示屏特性Chapter 6:VGA Display Port VGA接口——接到顯示器上Chapter 7:RS-232 Serial Ports RS-232接口——接器件Chapter 8:PS/2 Mouse/Keyboard Port PS/2鼠標(biāo)鍵盤接口Chapter 9:Digital to Analog Converter(DAC)D/A接口Chapter 10:Analog Capture Circuit 模擬捕獲電路Chapter 11:Intel StrataFlash Parallel NOR Flash PROM Chapter 12:SPI Serial Flash 串行外圍接口系列閃存Chapter 13:DDR SDRAM 內(nèi)存Chapter 14:10/100 Ethernet Physical Layer Interface以太網(wǎng)物理層接口Chapter 15:Expansion Connectors 擴(kuò)展接口Chapter 16:XC2C64A CoolRunner-II CPLDChapter 17:DS2432 1-Wire SHA-1 EEPROMSpartan-3E入門實(shí)驗(yàn)板使設(shè)計(jì)人員能夠即時(shí)利用Spartan-3E系列的完整平臺(tái)性能。設(shè)備支持:Spartan-3E、CoolRunner-ll關(guān)鍵特性:Xilinx器件:Spartan-3E(50萬門,XC3S500E-4FG320C),CoolRunnerTM-lI與Platform Flash時(shí)鐘:50MHz晶體時(shí)鐘振蕩器存儲(chǔ)器:128Mbit 并行Flash,16 Mbit SPI Flash,64MByte DDR SDRAM連接器與接口:以太網(wǎng)10/100Phy,JTAG USB下載,兩個(gè)9管腳RS-232串行端口,PS/2類型鼠標(biāo)/鍵盤端口,帶按鈕的旋轉(zhuǎn)編碼器,四個(gè)滑動(dòng)開關(guān),八個(gè)單獨(dú)的LED輸出
標(biāo)簽: Spartan-3E
上傳時(shí)間: 2022-06-19
上傳用戶:kingwide
模擬集成電路的設(shè)計(jì)與其說是一門技術(shù),還不如說是一門藝術(shù)。它比數(shù)字集成電路設(shè)計(jì)需要更嚴(yán)格的分析和更豐富的直覺。嚴(yán)謹(jǐn)堅(jiān)實(shí)的理論無疑是嚴(yán)格分析能力的基石,而設(shè)計(jì)者的實(shí)踐經(jīng)驗(yàn)無疑是誕生豐富直覺的源泉。這也正足初學(xué)者對(duì)學(xué)習(xí)模擬集成電路設(shè)計(jì)感到困惑并難以駕馭的根本原因。.美國加州大學(xué)洛杉機(jī)分校(UCLA)Razavi教授憑借著他在美國多所著名大學(xué)執(zhí)教多年的豐富教學(xué)經(jīng)驗(yàn)和在世界知名頂級(jí)公司(AT&T,Bell Lab,HP)卓著的研究經(jīng)歷為我們提供了這本優(yōu)秀的教材。本書自2000午出版以來得到了國內(nèi)外讀者的好評(píng)和青睞,被許多國際知名大學(xué)選為教科書。同時(shí),由于原著者在世界知名頂級(jí)公司的豐富研究經(jīng)歷,使本書也非常適合作為CMOS模擬集成電路設(shè)計(jì)或相關(guān)領(lǐng)域的研究人員和工程技術(shù)人員的參考書。... 本書介紹模擬CMOS集成電路的分析與設(shè)計(jì)。從直觀和嚴(yán)密的角度闡述了各種模擬電路的基本原理和概念,同時(shí)還闡述了在SOC中模擬電路設(shè)計(jì)遇到的新問題及電路技術(shù)的新發(fā)展。本書由淺入深,理論與實(shí)際結(jié)合,提供了大量現(xiàn)代工業(yè)中的設(shè)計(jì)實(shí)例。全書共18章。前10章介紹各種基本模塊和運(yùn)放及其頻率響應(yīng)和噪聲。第11章至第13章介紹帶隙基準(zhǔn)、開關(guān)電容電路以及電路的非線性和失配的影響,第14、15章介紹振蕩器和鎖相環(huán)。第16章至18章介紹MOS器件的高階效應(yīng)及其模型、CMOS制造工藝和混合信號(hào)電路的版圖與封裝。 1 Introduction to Analog Design 2 Basic MOS Device Physics 3 Single-Stage Amplifiers 4 Differential Amplifiers 5 Passive and Active Current Mirrors 6 Frequency Response of Amplifiers 7 Noise 8 Feedback 9 Operational Amplifiers 10 Stability and Frequency Compensation 11 Bandgap References 12 Introduction to Switched-Capacitor Circuits 13 Nonlinearity and Mismatch 14 Oscillators 15 Phase-Locked Loops 16 Short-Channel Effects and Device Models 17 CMOS Processing Technology 18 Layout and Packaging
標(biāo)簽: analog design cmos of
上傳時(shí)間: 2014-12-23
上傳用戶:杜瑩12345
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