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LTC2499 Datasheet(PDF) 4 Page - Linear Technology |
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LTC2499 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 32 page  LTC2499 4 2499fb I2C INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) ANALOG INPUT AND REFERENCE The l 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 l 0.7VCC V VIL Low Level Input Voltage l 0.3VCC V VIHA Low Level Input Voltage for Address Pins CA0, CA1, CA2 l 0.05VCC V VILA High Level Input Voltage for Address Pins CA0, CA1, CA2 l 0.95VCC V RINH Resistance from CA0, CA1, CA2 to VCC to Set Chip Address Bit to 1 l 10 kΩ RINL Resistance from CA0, CA1, CA2 to GND to Set Chip Address Bit to 0 l 10 kΩ RINF Resistance from CA0, CA1, CA2 to GND or VCC to Set Chip Address Bit to Float l 2 MΩ II Digital Input Current l –10 10 μA VHYS Hysteresis of Schmitt Trigger Inputs (Note 5) l 0.05VCC V VOL Low Level Output Voltage (SDA) I = 3mA l 0.4 V tOF Output Fall Time VIH(MIN) to VIL(MAX) Bus Load CB 10pF to 400pF (Note 14) l 20 + 0.1CB 250 ns IIN Input Leakage 0.1VCC ≤ VIN ≤ VCC l 1μA CCAX External Capacitative Load on Chip Address Pins (CA0, CA1, CA2) for Valid Float l 10 pF SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Supply Voltage l 2.7 5.5 V ICC Supply Current Conversion Current (Note 11) Temperature Measurement (Note 11) Sleep Mode (Note 11) l l l 160 200 1 275 300 2 μA μA μA VIN Input Differential Voltage Range (IN+ – IN–) l –FS +FS V FS Full Scale of the Differential Input (IN+ – IN–) l 0.5VREF V LSB Least Significant Bit of the Output Code l FS/224 REF+ Absolute/Common Mode REF+ Voltage l 0.1 VCC V REF– Absolute/Common Mode REF– Voltage l GND REF+ – 0.1V V VREF Reference Voltage Range (REF+ – REF–) l 0.1 VCC V 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 l –10 1 10 nA IDC_LEAK(IN–) IN– DC Leakage Current Sleep Mode, IN– = GND l –10 1 10 nA IDC_LEAK(REF+) REF+ DC Leakage Current Sleep Mode, REF+ = VCC l –100 1 100 nA IDC_LEAK(REF–) REF– DC Leakage Current Sleep Mode, REF– = GND l –100 1 100 nA tOPEN MUX Break-Before-Make 50 ns QIRR MUX Off Isolation VIN = 2VP-P DC to 1.8MHz 120 dB POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) |
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