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AD542

High Performance, BiFET Operational Amplifiers

PRODUCTDESCRIPTION TheBiFETseriesofprecision,monolithicFET-inputopampsarefabricatedwiththemostadvancedBiFETandlasertrimmingtechnologies.TheAD542,AD544,AD547seriesoffersbiascurrentssignificantlylowerthancurrentlyavailableBiFETdevices,25pAmax,warmedup.

AD542

High Performance, BiFET Operational Amplifiers;

The BiFET series of precision, monolithic FET-input op amps are fabricated with the most advanced BiFET and laser trimming technologies. The AD542, AD544, AD547 series offers bias currents significantly lower than currently available BiFET devices, 25 pA max, warmed up. In addition, the offset voltage is laser trimmed to less than 0.25 mV on the AD547L, which is achieved by utilizing Analog exclusive laser wafer trimming (LWT) process. When combined with the AD547's low offset drift (1μV/°C), these features offer the user performance superior to existing BiFET op amps at low BiFET pricing. AD542 or AD547 is recommended for any operational amplifier application requiring excellent dc performance at low to moderate cost. Precision instrument front ends requiring rate amplification of millivolt level signals from megohm source impedances will benefit from the device's excellent combination of low offset voltage and drift, low bias current and low 1/f noise. High common-mode rejection (80 dB, min on the \"K\" and \"L\" grades) and high open-loop gain, even under heavy loading, ensures better than \"12-bit\" linearity in high impedance buffer applications. The AD544 is recommended for any op amp applications requiring excellent ac and dc performance at low cost. The 2 MHz bandwidth and low offset of the AD544 make it the first choice as an output amplifier for current output D/A converters, such as the AD7541, 12-bit CMOS DAC. Devices in this series are available in four grades: the \"J,\" \"K,\" and \"L\" grades are specified over the 0°C to +70°C temperature range and the \"S\" grade over the -55°C to +125°C operating temperature range. All devices are offered in the hermetically sealed, TO-99 metal can package. \n\n

AD542

High Performance, BiFET Operational Amplifiers

AD5420

Single Channel, 16-Bit, Serial Input, Current Source DAC

GENERALDESCRIPTION TheAD5410/AD5420arelowcost,precision,fullyintegrated12-/16-bitconvertersofferingaprogrammablecurrentsourceoutputdesignedtomeettherequirementsofindustrialprocesscontrolapplications.Theoutputcurrentrangeisprogrammableat4mAto20mA,0mAto20

AD5420

Low Power HART Modem

GENERALDESCRIPTION TheAD5700/AD5700-1aresingle-chipsolutions,designedandspecifiedtooperateasaHART?FSKhalf-duplexmodem,complyingwiththeHARTphysicallayerrequirements.TheAD5700/AD5700-1integrateallofthenecessaryfiltering,signaldetection,modulating,demodulatingands

AD5420BCPZ

Single Channel, 16-Bit, Serial Input, Current Source DAC

GENERALDESCRIPTION TheAD5410/AD5420arelowcost,precision,fullyintegrated12-/16-bitconvertersofferingaprogrammablecurrentsourceoutputdesignedtomeettherequirementsofindustrialprocesscontrolapplications.Theoutputcurrentrangeisprogrammableat4mAto20mA,0mAto20

AD5420BREZ

Single Channel, 16-Bit, Serial Input, Current Source DAC

GENERALDESCRIPTION TheAD5410/AD5420arelowcost,precision,fullyintegrated12-/16-bitconvertersofferingaprogrammablecurrentsourceoutputdesignedtomeettherequirementsofindustrialprocesscontrolapplications.Theoutputcurrentrangeisprogrammableat4mAto20mA,0mAto20

AD5421

16-Bit, Serial Input, Loop-Powered, 4mA to 20mA DAC

GENERALDESCRIPTION TheAD5421isacomplete,loop-powered,4mAto20mAdigital-to-analogconverter(DAC)designedtomeettheneedsofsmarttransmittermanufacturersintheindustrialcontrolindustry.TheDACprovidesahighprecision,fullyintegrated,lowcostsolutionincompactTSSOPand

AD5421

Low Power HART Modem

GENERALDESCRIPTION TheAD5700/AD5700-1aresingle-chipsolutions,designedandspecifiedtooperateasaHART?FSKhalf-duplexmodem,complyingwiththeHARTphysicallayerrequirements.TheAD5700/AD5700-1integrateallofthenecessaryfiltering,signaldetection,modulating,demodulatingands

AD5421

16位、串行輸入、環(huán)路供電、4MA至20MA DAC; ? 16位分辨率和單調(diào)性\n\n? 引腳可選的NAMUR兼容范圍\n? 4 mA至20 mA\n\n? 3.8 mA至21 mA\n\n? 3.2 mA至24 mA\n\n\n\n\n? NAMUR兼容報警電流\n? 下限報警電流 = 3.2 mA\n\n? 上限報警電流 = 22.8 mA/24 mA\n\n\n\n\n? 總非調(diào)整誤差(TUE)：0.05%（最大值）\n\n? 積分非線性(INL)誤差：0.0035% FSR（最大值）\n\n? 輸出溫度系數(shù)：3 ppm/°C（典型值）\n\n? 靜態(tài)電流：300 μA（最大值）;

AD5421是一款完整的環(huán)路供電型4 mA-20 mA數(shù)模轉(zhuǎn)換器(DAC)，專為滿足工業(yè)控制領(lǐng)域智能發(fā)射器制造商的需求而設(shè)計。作為一種完全集成的高精度、低成本解決方案，該器件采用緊湊型TSSOP和LFCSP封裝。\n\n AD5421內(nèi)置一路穩(wěn)壓輸出，用于為自身及發(fā)射器中的其它器件供電。此調(diào)節(jié)器提供1.8 V至12 V的調(diào)節(jié)輸出電壓。該器件還內(nèi)置1.22 V和2.5 V基準(zhǔn)電壓源，因而不需要分立調(diào)節(jié)器和基準(zhǔn)電壓源。\n\n AD5421可以結(jié)合標(biāo)準(zhǔn)HART? FSK協(xié)議通信電路使用，而且額定性能不會受到影響。高速串行接口能夠以30 MHz速率工作，并且允許通過一個SPI兼容型三線式接口與常用的微處理器和微控制器簡單相連。\n\n AD5421保證16-bit單調(diào)性。典型條件下，積分非線性為0.0015%，失調(diào)誤差為0.0012%，增益誤差為0.0006%。\n\n 它采用28引腳TSSOP封裝，額定溫度范圍為?40°C至+105°C工業(yè)溫度范圍。 \n\n