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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT1469 датащи(PDF) 5 Page - Linear Technology |
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LT1469 датащи(HTML) 5 Page - Linear Technology |
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5 / 26 page  LTC2326-16 5 232616fa For more information www.linear.com/LTC2326-16 aDc TiMing characTerisTics power requireMenTs The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Supply Voltage l 4.75 5 5.25 V OVDD Supply Voltage l 1.71 5.25 V IVDD IOVDD INAP ISLEEP Supply Current Supply Current Nap Mode Current Sleep Mode Current 250ksps Sample Rate (IN+ = –10.24V, IN– = 0V) 250ksps Sample Rate (IN+ = IN– = 0V) 250ksps Sample Rate (CL = 20pF) Conversion Done (IVDD + IOVDD, IN+ = –10.24V, IN– = 0V) Sleep Mode (IVDD + IOVDD) l l l 9.9 5.6 0.1 8.4 60 11.5 10 225 mA mA mA mA μA PD Power Dissipation Nap Mode Sleep Mode 250ksps Sample Rate (IN+ = –10.24V, IN– = 0V) 250ksps Sample Rate (IN+ = IN– = 0V) Conversion Done (IVDD + IOVDD, IN+ = –10.24V, IN– = 0V) Sleep Mode (IVDD + IOVDD) l l l 50 28 42 0.3 57.5 50 1.1 mW mW mW mW SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fSMPL Maximum Sampling Frequency l 250 ksps tCONV Conversion Time l 1.9 3 µs tACQ Acquisition Time tACQ = tCYC – tHOLD (Note 11) l 3.460 µs tHOLD Maximum Time between Acquisitions l 540 ns tCYC Time Between Conversions l 4 µs tCNVH CNV High Time l 20 ns tBUSYLH CNV↑ to BUSY Delay CL = 20pF l 13 ns tCNVL Minimum Low Time for CNV (Note 12) l 20 ns tQUIET SCK Quiet Time from CNV↑ (Note 11) l 20 ns tSCK SCK Period (Notes 12, 13) l 10 ns tSCKH SCK High Time l 4 ns tSCKL SCK Low Time l 4 ns tSSDISCK SDI Setup Time From SCK↑ (Note 12) l 4 ns tHSDISCK SDI Hold Time From SCK↑ (Note 12) l 1 ns tSCKCH SCK Period in Chain Mode tSCKCH = tSSDISCK + tDSDO (Note 12) l 13.5 ns tDSDO SDO Data Valid Delay from SCK↑ CL = 20pF, OVDD = 5.25V CL = 20pF, OVDD = 2.5V CL = 20pF, OVDD = 1.71V l l l 7.5 8 9.5 ns ns ns tHSDO SDO Data Remains Valid Delay from SCK↑ CL = 20pF (Note 11) l 1 ns tDSDOBUSYL SDO Data Valid Delay from BUSY↓ CL = 20pF (Note 11) l 5 ns tEN Bus Enable Time After RDL↓ (Note 12) l 16 ns tDIS Bus Relinquish Time After RDL↑ (Note 12) l 13 ns tWAKE REFBUF Wake-Up Time CREFBUF = 47μF, CREFIN = 100nF 200 ms |
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