TheAD5308/AD5318/AD5328areoctal8-,10-,and12-bitbufferedvoltageoutputDACsina16-leadTSSOP.Theyoperatefromasingle2.5Vto5.5Vsupply,consuming0.7mAtypicalat3V.Theiron-chipoutputamplifiersallowtheoutputstoswingrail-to-railwithaslewrateof0.7V/μs.TheAD5308/AD5318/AD5328useaversatile3-wireserialinterfacethatoperatesatclockratesupto30MHzandiscompatiblewithstandardSPI,QSPI,MICROWIRE,andDSPinterfacestandards.
ThereferencesfortheeightDACsarederivedfromtworeferencepins(oneperDACquad).Thesereferenceinputscanbeconfiguredasbuffered,unbuffered,orVDDinputs.Thepartsincorporateapower-onresetcircuit,whichensuresthattheDACoutputspowerupto0Vandremainthereuntilavalidwritetothedevicetakesplace.TheoutputsofallDACsmaybeupdatedsimultaneouslyusingtheasynchronousLDACinput.Thepartscontainapower-downfeaturethatreducesthecurrentconsumptionofthedevicesto400nAat5V(120nAat3V).TheeightchannelsoftheDACmaybepowereddownindividually.
Allthreepartsareofferedinthesamepinout,whichallowsuserstoselecttheresolutionappropriatefortheirapplicationwithoutredesigningtheircircuitboard.