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ADS8325 Datasheet(PDF) 8 Page - Texas Instruments |
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ADS8325 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 37 page www.ti.com TIMING INFORMATION D OUT 1.4V TestPoint 3kW 100pF C LOAD LoadCircuitfort ,t ,andt dDO r f VoltageWaveformsforD RiseandFallTimes,t ,t OUT r f VoltageWaveformsforD DelayTimes,t OUT dDO VoltageWaveformsfort dis VoltageWaveformsfort en LoadCircuitfort andt dis en t r D OUT 90% 10% t f D OUT TestPoint t Waveform2,t dis en V DD t Waveform1 dis 100pF C LOAD 3kW t dis CS /SHDN D OUT Waveform1 (3) D OUT Waveform2 (4) 90% 10% 90% 4 1 B15 5 t en CS /SHDN DCLOCK D OUT t dDO D OUT DCLOCK t hDO (3)Waveform1isforanoutputwithinternalconditionssuchthat theoutputishighunlessdisabledbytheoutputcontrol. (4)Waveform2isforanoutputwithinternalconditionssuchthat theoutputislowunlessdisabledbytheoutputcontrol. CS/SHDN D OUT DCLOCK t CYC PowerDown Conversion Sample Usepositiveclockedgefordatatransfer t SUCS t CONV t SMPL NOTE:(1)Aminimumof22clockcyclesarerequiredfor16-bitconversion;24clockcyclesareshown. If remainslowattheendofconversion,anewdatastreamisshiftedoutwithLSB-firstdatafollowedbyzeroesindefinitely. CS B15 (MSB) B14 B13 B12 B11 B10 B9 B8 B0 (1) (LSB) B7 B1 B6 B2 B5 B3 B4 Hi-Z 0 Hi-Z t CSD NOTES: CS/SHDN D OUT DCLOCK t CONV t SUCS t CSD t CYC PowerDown t SMPL NOTE:(2)Aftercompletingthedatatransfer,iffurtherclocksareappliedwith low,theA/Dconverterwilloutputzeroesindefinitely. CS B15 (MSB) B14 B6 B5 B4 B4 B3 B3 B2 B2 B1 B1 B0 Hi-Z Hi-Z B5 B0 B11 B12 B13 B14 B15 (2) (LSB) (MSB) 0 ADS8325 SBAS226C – MARCH 2002 – REVISED AUGUST 2007 Figure 1. Timing Diagrams and Test Circuits for the Paramters in Table 1 8 Submit Documentation Feedback Copyright © 2002–2007, Texas Instruments Incorporated Product Folder Link(s): ADS8325 |
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