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LTC2378CDE-20PBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC2378CDE-20PBF Datasheet(HTML) 4 Page - Linear Technology |
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4 / 28 page  LTC2378-20 4 237820f For more information www.linear.com/LTC2378-20 aDc TiMing characTerisTics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fSMPL Maximum Sampling Frequency l 1 Msps tCONV Conversion Time l 615 675 ns tACQ Acquisition Time tACQ = tCYC – tCONV – tBUSYLH (Note 10) l 312 ns tCYC Time Between Conversions l 1 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 11) l 20 ns tQUIET SCK Quiet Time from CNV ↑ (Note 10) l 20 ns tSCK SCK Period (Notes 11, 12) l 10 ns The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) power requireMenTs SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Supply Voltage l 2.375 2.5 2.625 V OVDD Supply Voltage l 1.71 5.25 V IVDD IOVDD IPD Supply Current Supply Current Power Down Mode 1Msps Sample Rate 1Msps Sample Rate (CL = 20pF) Conversion Done (IVDD + IOVDD + IREF) l l 8.4 0.2 1 10 90 mA mA µA PD Power Dissipation Power Down Mode 1Msps Sample Rate Conversion Done (IVDD + IOVDD + IREF) 21 2.5 25 225 mW µW The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) reFerence inpuT SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VREF Reference Voltage (Note 5) l 2.5 5.1 V IREF Reference Input Current (Note 9) l 0.94 1.1 mA VIHDGC High Level Input Voltage REF/DGC Pin l 0.8VREF V VILDGC Low Level Input Voltage REF/DGC Pin l 0.2VREF V The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) DigiTal inpuTs anD DigiTal ouTpuTs SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIH High Level Input Voltage l 0.8 • OVDD V VIL Low Level Input Voltage l 0.2 • OVDD V IIN Digital Input Current VIN = 0V to OVDD l –10 10 µA CIN Digital Input Capacitance 5 pF VOH High Level Output Voltage IO = –500µA l OVDD – 0.2 V VOL Low Level Output Voltage IO = 500µA l 0.2 V IOZ Hi-Z Output Leakage Current VOUT = 0V to OVDD l –10 10 µA ISOURCE Output Source Current VOUT = 0V –10 mA ISINK Output Sink Current VOUT = OVDD 10 mA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) |
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