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LTC2485CDD Datasheet(PDF) 4 Page - Linear Technology |
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LTC2485CDD Datasheet(HTML) 4 Page - Linear Technology |
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4 / 40 page  4 LTC2485 2485fa The ● denotes the 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 ● 0.7VCC V VIL Low Level Input Voltage ● 0.3VCC V VIL(CA1) Low Level Input Voltage for Address Pin ● 0.05VCC V VIH(CA0/F0,CA1) High Level Input Voltage for Address Pins ● 0.95VCC V RINH Resistance from CA0/F0,CA1 to VCC to Set ● 10 k Ω Chip Address Bit to 1 RINL Resistance from CA1 to GND to Set ● 10 k Ω Chip Address Bit to 0 RINF Resistance from CA0/F0, CA1 to VCC or ● 2M Ω GND to Set Chip Address Bit to Float II Digital Input Current ● –10 10 µA VHYS Hysteresis of Schmitt Trigger Inputs (Note 5) 0.05VCC V VOL Low Level Output Voltage SDA I = 3mA ● 0.4 V tOF Output Fall Time from VIHMIN to VILMAX Bus Load CB 10pF to 400pF (Note 14) ● 20+0.1CB 250 ns tSP Input Spike Suppression ● 50 ns IIN Input Leakage 0.1VCC ≤ VIN ≤ VCC ● 1 µA CI Capacitance for Each I/O Pin ● 10 pF CB Capacitance Load for Each Bus Line ● 400 pF CCAX External Capacitive Load on Chip ● 10 pF Address Pins (CA0/F0,CA1) for Valid Float VIH(EXT,OSC) High Level CA0/F0 External Oscillator 2.7V ≤ VCC < 5.5V ● VCC – 0.5V V VIL(EXT,OSC) Low Level CA0/F0 External Oscillator 2.7V ≤ VCC < 5.5V ● 0.5 V SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Supply Voltage ● 2.7 5.5 V ICC Supply Current Conversion Mode (Note 11) ● 160 250 µA Sleep Mode (Note 11) ● 12 µA The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) POWER REQUIRE E TS I2C DIGITAL I PUTS A D DIGITAL OUTPUTS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS CS (IN+)IN+ Sampling Capacitance 11 pF CS (IN –)IN– Sampling Capacitance 11 pF CS (VREF)VREF Sampling Capacitance 11 pF IDC_LEAK (IN +)IN+ DC Leakage Current Sleep Mode, IN+ = GND ● –10 1 10 nA IDC_LEAK (IN–)IN– DC Leakage Current Sleep Mode, IN– = GND ● –10 1 10 nA IDC_LEAK (VREF)REF+, REF– DC Leakage Current Sleep Mode, VREF = VCC ● –100 1 100 nA The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) A ALOG I PUT A D REFERE CE |
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