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LTC2445CUHF Datasheet(PDF) 4 Page - Linear Technology |
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LTC2445CUHF Datasheet(HTML) 4 Page - Linear Technology |
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4 / 28 page  LTC2444/LTC2445/ LTC2448/LTC2449 4 sn2444589 2444589fs TI I G CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Supply Voltage ● 4.5 5.5 V ICC Supply Current Conversion Mode CS = 0V (Note 7) ● 811 mA Sleep Mode CS = VCC (Note 7) ● 830 µA The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) POWER REQUIRE E TS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIH High Level Input Voltage 4.5V ≤ VCC ≤ 5.5V ● 2.5 V CS, FO VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V ● 0.8 V CS, FO VIH High Level Input Voltage 4.5V ≤ VCC ≤ 5.5V (Note 8) ● 2.5 V SCK VIL Low Level Input Voltage 4.5V ≤ VCC ≤ 5.5V (Note 8) ● 0.8 V SCK IIN Digital Input Current 0V ≤ VIN ≤ VCC ● –10 10 µA CS, FO, EXT, SOI IIN Digital Input Current 0V ≤ VIN ≤ VCC (Note 8) ● –10 10 µA SCK CIN Digital Input Capacitance 10 pF CS, FO CIN Digital Input Capacitance (Note 8) 10 pF SCK VOH High Level Output Voltage IO = –800µA ● VCC – 0.5V V SDO, BUSY VOL Low Level Output Voltage IO = 1.6mA ● 0.4V V SDO, BUSY VOH High Level Output Voltage IO = –800µA (Note 9) ● VCC – 0.5V V SCK VOL Low Level Output Voltage IO = 1.6mA (Note 9) ● 0.4V V SCK IOZ Hi-Z Output Leakage ● –10 10 µA SDO DIGITAL I PUTS A D DIGITAL OUTPUTS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fEOSC External Oscillator Frequency Range ● 0.1 20 MHz tHEO External Oscillator High Period ● 25 10000 ns tLEO External Oscillator Low Period ● 25 10000 ns tCONV Conversion Time OSR = 256 (SDI = 0) ● 0.99 1.13 1.33 ms OSR = 32768 (SDI = 1) ● 126 145 170 ms External Oscillator (Notes 10, 13) ● 40 • OSR +170 fEOSC (kHz) ms fISCK Internal SCK Frequency Internal Oscillator (Note 9) ● 0.8 0.9 1 MHz External Oscillator (Notes 9, 10) fEOSC/10 Hz |
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