TheAD8465isaveryfastcomparatorfabricatedontheAnalogDevices,Inc.,proprietaryXFCB2process.Thiscomparatorisexceptionallyversatileandeasytouse.FeaturesincludeaninputrangefromVEE−0.5VtoVCCI+0.2V,lownoise,LVDS-compatibleoutputdrivers,andTTL/CMOSlatchinputswithadjustablehysteresisand/orshutdowninputs.Thedeviceoffers1.6nspropagationdelaywith1psrmsrandomjitter(RJ).Overdriveandslewratedispersionaretypicallylessthan50ps.
Aflexiblepowersupplyschemeallowsthedevicestooperatewithasingle2.5Vpositivesupplyanda−0.5Vto+2.7Vinputsignalrangeuptoa5.5Vpositivesupplywitha−0.5Vto+5.7Vinputsignalrange.Splitinput/outputsupplies,withnosequencingrestrictions,supportawideinputsignalrangewithgreatlyreducedpowerconsumption.
TheLVDS-compatibleoutputstageisdesignedtodriveanystandardLVDSinput.Thecomparatorinputstageoffersrobustprotectionagainstlargeinputoverdrive,andtheoutputsdonotphasereversewhenthevalidinputsignalrangeisexceeded.Highspeedlatchandprogrammablehysteresisfeaturesarealsoprovidedinauniquesingle-pincontroloption.TheAD8465isavailableina12-leadLFCSP.