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ANALOG DEVICES fAX-ON-DEMAND HOTLINE - Page 6 N ANALOGW DEVICES I LowPower14-B-it,15Bit& 16-Bit SamplingAnalog-to-DigitalConverters DAS 1157 /DAS 1158/DAS 1159 I

FEATURES

Complete with High Accuracy Semple/Hold and AID Converter Low Power Conaumption: 850mW mu. v. = :t:15V Rated Pedormence: -25"'<:to + BS"'<: Low Nonlinearity(DAS1158 and DAS1159) Differential::t:0.0015% FSR max Integral::0.003% FSR max Dlff8r8ntialT.C.:% 1ppmrc me. High Throughput Rete:18kHz min Byte-SelectableTri-StateBufferedOutputs InternelGeln . OffsetPotentiometers Improved Second Source to AlD/A/M434 end AlD/AJM.&35Modules APPUCA T1ONS SeismicDate Acquisition PortableReId Instrumentation Automated Test Equipment Proceu ControlDate Acquisition MedicalInstrumentation GENERAL DESCRIPTION The DASllS7/DASllS8/DASl1S9 are 1+/lS-/16-bitsampling aualog-to-disitalconverters.They areideallysuitedforuse in portableand remote dataacquisitionequipment where low power consumption (6SOmW muimum) and wide temperature range(-2S"C to + 85"C rated perfOrmaDcc) are required. DASllS7IDASl1S8IDASllS9 provideguaranteedhigh accuracy and high stabilitysystem pcrfOrmaDCCessentialtomedical, analyticaland processcontrolequipment:differentialnonlinearity of :O.OOIS% max and integralDonlincarityof :0.003% max (DASllS8 and DASllS9); DO missingcodesguaranteed;pin differentialnonlinearityT.C. of : IppmI"C max. The wide dynamic rangewillenhancc thepcrfOrmaDCCofcritical mcuurc:mentSinau and liquidchromatography,bloodaualyzcrs, distributeddataacquisitioDin factoryautomatioDand power sencratingequipment,and inautomatictestequipment. FUNCTIONAL BLOCK DIAGRAM "NA~DO """'T . TAl. SU'EIUFFE~S ,$It<'NPU' S/H CONT.Ol ...v +'SV "'NAlOG . OIGrr aNOS -ISV ..,our ...'N"'U ...SO "'$1 I (lIT '" fL$&1 I,r1 fOIl0"""" liT'II'.lIT. IIr I liT' LO .NAllE liT. liT. IIr'. lIT 11 liTt2 lIT " lIT " 1LS8 DAS"." lIT to ILS8 0""".., .SV DIGITAL """ The DASllS7IDASllS8/DASllS9 make use of Analog Devices' proprietaryCMOS technologytoacb.ievelow power operation, whileutilizingthelatestintegratedcircuitand thin-filmcompo- nentStoachievethehighestlevelofpcrfOrmaDCCand reliability. As shown inFigure1,eachdeviceCODtainsa precisionsamplclhold amplifier,highaccuracyl+1IS-/l6-bitanalog-to-digitalconverter, precisionreferencc.CMOS tri-stateoutputbuffen (fordirect8. bitor 16-bitbus interface),useraccessiblepin and offsetadjust potentiometers,and power supplybypasscapac:iton,allina compact low profile2~x"" x 0.37S"metalcascpaclcagc.No additionalcomponenu are requiredforoperation. I OBSOLETE

ANALOG DEVICES fAX-ON-DEMAND HOTLINE - Page 7 DAS1157/DAS1158/DAS1159-SPECIFICATIONS (typical@ +25°C,Vs = ::t15V,Yo = +5Y unlessotherwisespecified) MODEL RESOLUTION OYNAMICP5RfORMANCE !"hroughput Ra'e Co.""nion Time S H Acqo..Iuon Time S HApertutCDc!:ay S H Apertore UncertainlY F«dthlOUlih Re;«lion' Droop Ral. DICI.",I, Abs<>rp<ionError ,~CCt:RACY 10'CiI"'1Noohnearuy' DIII.reoti,1Nonhnan,y' NoMIS,ingCod'" :JO'Noi..,SiHplu'ND\\ :3<YNOIse(NDJ STABILITY D,ICerentialNonlinearity T.c. Ga,nT.C, ZeroT,C, Conver..onTimcT,C, Po",erSupply Senslti..ty Warm.Up Time ANALOGIN'I'UT Voltage Rani< 8ipolar Unipolar' IlDe Inpul Impe<J&nce Qto + ~V 0,o+IDV.=5V ",-IOV S;H Inpu,lmpcdanco DIGITAL INPUTS AiD Trill«..' lope Level' SIHConllol Low Enable. High Enabl.' DIGITAL OUTPUTS P,rallelData 0011'0" Unipolar 8ipow OUlPOI Dri.. EndoCConvenion OUlpul Dri.e INTERNAL REFERE."ICE VOLTAGE E..emal Looa Cor"",' (R.ud Pfflormln<t) POWER REQUIREMENTS Rated Voltaps Ope..u.. Voltavcs'" SupplyCortenlDrain '"ISV +5V TEMPERATURE RANGE RI,ed P.rformance Oper..,..5'°"" llel..ivcHumidiry Shielding ~57 148111 158i.. ~S9 1681.. 18kHzmin S".mu 2SOn, I.. -9Od8min :0,005%oflnpuIVoltagcChani< :0 005% FSR'mu = D.OOJ% FSR'maa Guarante<d :0,003% FSR'""" "O.OOI~%FSR'mul .. ::lppmf'Cmu :0:8ppmf'Cmu :3Oi;Y,'Ctyp,"'-SO...VI"Cmax :O.O~%I"C :O,OOI%FSR'!%V. I._lhen IMinu,e = Ippmi"Cmu dV. ::JOV 010+SV.O,o+10V UkH S1<O 10k/J IOOMO!5pl" SVCMOSeompatible SAMPLE. Logi.I.TIL Compatible ENABLE- l.os1cO.CMOSrrrt. CompatibleI- 8inary Off...BillllY,2',Complemen, 2TIL Looa, U>gic"I" DurinJCon..nion 2TIL Looa. + IOV, ,,0,3% SeeNo.. 7 SeeN"'e 7 :ISV(:o:3%},+5V(:S%) "'-lZVto:!:17V, .4.75Vto + S.2SV :!:15mA IOmA SOOmWtyp,6SOmWmu -ZS'l:to+8S'I: -25'1:10+8~'I: - 40'1:10+ 100'1: Moo.. MIL.STD.2DZE, MC1hod 1038 Electromagnelic(EM!) 5Sid.. Z-, 4"' 0,37S"MctalP..kagcSIZE NOTES 'S"",."." OASIII7 ',",""'-UM,.nun.- 0/SIHUIdAiD _Io_ity ,non. -7V). OUTLINE DIMENSIONS Dimensions shown in inchesand (mm), IT-~""..-~T ~,:~:~ T I ...' 1!jL':""-::+..-II' ,J.f++-;~~ c+', ' , ..,"""'° , ::..."':]" 0"" ';";..;..j i:j:::t: ;'! ASSIUO1.Y INSI'aUCJ1ONS CAtmON: Thia modWe ia - aDaraIJeddod.-mbIy azo4II poriormaDot~ ODd ~, WoaII aI\\Iot ..,- - ODd- 0GIyttpOtdoaabybuod. OBSOLETE

switchingfrom 100 000 to 100 001. of switchingfrom 011 10 to011 11. binarycoded outputwhen configuredasa unipolardevice. btpolaranaloginput/digitaloutpUtrelationships. theHIGH BYTE ENABLE and LOW BYTE ENABLE tenninals. can be obtainedby connectingtheenablepins toground. each of thepower supplyinputstoground. ground pin isadvisableforoptimum performance. Figure 4. TvpicalGround Lavout forDAS1157/DAS1158/