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AD766

16-Bit DSP DACPORT

PRODUCTDESCRIPTION TheAD76616-bitDSPDACPORTprovidesadirect,threewireinterfacetotheserialportsofpopularDSPprocessors,includingtheADSP-2101,TMS320CXX,andDSP56001.Noadditional“gluelogic”isrequired.TheAD766isalsocomplete,offeringon-chipserial-to-parallelinputf

AD766

16位電流導(dǎo)引DAC，內(nèi)置基準(zhǔn)電壓源; ? 直接與數(shù)字信號處理器接口\n\n? 完整的DACPORTx\n片內(nèi)基準(zhǔn)電壓源\n電壓和電流輸出\n\n? 串行、二進(jìn)制補碼輸入\n\n? 輸出電壓：±3 V \n\n? 采樣速率：390 kSPS;

AD766是一款16位DSP DACPORT，具有一個三線式接口，可以直接與ADSP-2101、TMS320CXX和DSP56001等頗受歡迎的DSP處理器串行端口接口，無需額外膠連邏輯。此外，AD766配置完整，提供片內(nèi)串行至并行輸入格式轉(zhuǎn)換、16位電流導(dǎo)引DAC、基準(zhǔn)電壓源以及電壓輸出運算放大器。AD766采用ADI公司BiMOS II混合信號工藝制造，除CMOS邏輯器件外，還提供適用于精密模擬電路的雙極性晶體管、MOS晶體管和薄膜電阻。?????????????????????\n\nAD766的設(shè)計和布局已針對交流性能進(jìn)行優(yōu)化，經(jīng)過測試可保證信噪比為94 dB (20 kHz)和79 dB (250 kHz)。硅鉻薄膜電阻經(jīng)過激光調(diào)整，總諧波失真降至-81 dB (1 kHz)以下，此特性也經(jīng)過生產(chǎn)測試?？蛇x線性調(diào)整引腳可以消除中間電平差分線性誤差，從而使小信號的總諧波失真更低。\n\nAD766的輸出放大器可提供±3 V信號，具有高壓擺率、小毛刺和快速建立特性。輸出放大器具有短路保護(hù)功能，可以承受無限大的對地短路電壓。\n\n串行接口由位時鐘輸入、數(shù)據(jù)輸入和鎖存使能輸入組成。二進(jìn)制補碼數(shù)據(jù)字以MSB優(yōu)先的方式，在下降時鐘沿送入串行并行轉(zhuǎn)換器，這與常用DSP處理器的串行協(xié)議一致。輸入時鐘可支持高達(dá)12.5 MHz的數(shù)據(jù)傳輸。在鎖存使能的下降沿，最近讀入串行輸入寄存器的16位數(shù)據(jù)以采樣速率更新內(nèi)部DAC輸入寄存器。\n\nAD766采用±5 V至±12 V電源供電。數(shù)字電源+VL 和-VL可以與模擬信號電源+VS 和 -VS,分離，以減少數(shù)字串?dāng)_。同時還提供獨立的模擬接地和數(shù)字接地引腳。內(nèi)部帶隙基準(zhǔn)電壓源為輸出放大器提供不隨溫度和時間而變化的精密電壓源。\n\n采用±5 V電源供電時，典型功耗為120 mW；采用±12 V電源供電時，典型功耗為300 mW。AD766提供商用（0°C至+70°C）、工業(yè)（-40°C至+85°C）和軍用（-55°C至+125°C）三種等級產(chǎn)品。商用和工業(yè)等級器件采用16引腳塑封DIP封裝；軍用等級器件符合MIL-STD-883B生產(chǎn)標(biāo)準(zhǔn)，采用16引腳陶瓷DIP封裝。關(guān)于軍用版本的特性，請參考ADI公司《軍用產(chǎn)品數(shù)據(jù)手冊》或當(dāng)前的軍用級數(shù)據(jù)手冊。\n\n

AD7660

16-Bit, 100 kSPS CMOS ADC

GENERALDESCRIPTION TheAD7660isa16-bit,100kSPS,chargeredistributionSAR,analog-to-digitalconverterthatoperatesfromasingle5Vpowersupply.Thepartcontainsaninternalconversionclock,errorcorrectioncircuits,andbothserialandparallelsysteminterfaceports. TheAD7660is

AD7660

16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC

GENERALDESCRIPTION TheAD7612isa16-bitchargeredistributionsuccessiveapproximationregister(SAR),architectureanalog-to-digitalconverter(ADC)fabricatedonAnalogDevices,Inc.’siCMOShighvoltageprocess.Thedeviceisconfiguredthroughhardwareorviaadedicatedwriteonlyseria

AD7660

16-Bit, 250 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC

GENERALDESCRIPTION TheAD7610isa16-bitchargeredistributionsuccessiveapproximationregister(SAR),architectureanalog-to-digitalconverter(ADC)fabricatedonAnalogDevices,Inc.’siCMOShighvoltageprocess.Thedeviceisconfiguredthroughhardwareorviaadedicatedwriteonlyseria

AD7660

14-Bit, 1 MSPS, Differential, Programmable Input PulSAR ADC

GENERALDESCRIPTION TheAD7952isa14-bit,chargeredistribution,successiveapproximationregister(SAR)architectureanalog-to-digitalconverter(ADC)fabricatedonAnalogDevices,Inc.’siCMOShighvoltageprocess.Thedeviceisconfiguredthroughhardwareorviaadedicatedwrite-onlyserial

AD7660

18-Bit, 2.5 LSB INL, 800 kSPS SAR ADC

GENERALDESCRIPTION TheAD7665isa16-bit,570kSPS,chargeredistributionSAR,analog-to-digitalconverterthatoperatesfromasingle5Vpowersupply.Itcontainsahighspeed16-bitsamplingADC,aresistorinputscalerthatallowsvariousinputranges,aninternalconversionclock,error

AD7660

16-Bit 1 MSPS SAR Unipolar ADC with Ref

GENERALDESCRIPTION TheAD7667isa16-bit,1MSPS,chargeredistributionSARanalog-to-digitalconverterthatoperatesfromasingle5Vpowersupply.Thepartcontainsahighspeed16-bitsampling ADC,aninternalconversionclock,internalreference,errorcorrectioncircuits,andbothserial

AD7660

Low Cost, 4-Channel, 16-Bit 1 MSPS PulSAR? ADC

GENERALDESCRIPTION TheAD7655isalowcost,simultaneoussampling,dualchannel,16-bit,chargeredistributionSAR,analog-to-digitalconverterthatoperatesfromasingle5Vpowersupply.Itcontainstwolownoise,widebandwidth,track-and-holdamplifiersthatallowsimultaneoussampling,

AD7660

16-Bit, 570 kSPS CMOS ADC

GENERALDESCRIPTION TheAD7665isa16-bit,570kSPS,chargeredistributionSAR,analog-to-digitalconverterthatoperatesfromasingle5Vpowersupply.Itcontainsahighspeed16-bitsamplingADC,aresistorinputscalerthatallowsvariousinputranges,aninternalconversionclock,errorco