LTC1440/LTC1441/LTC1442 ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25 ° C. V+ = 3V and V– = GND = 0V unless otherwise noted.SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITSPower Supply V + Supply Voltage Range ● 2 11 V ICC Supply Current IN + = IN – + 80mV LTC1440 0°C ≤ TA ≤ 70°C ● 2 3.9 µA HYST = REF (LTC1440/LTC1442) –40°C ≤ TA ≤ 85°C ● 4.3 µA LTC1441 ● 3.5 5.7 µA LTC1442 ● 3.5 5.7 µA Comparator VOS Comparator Input Offset Voltage VCM = 1.5V ● ±3 ±10 mV I + – IN Input Leakage Current (IN +, IN –) VIN = VIN = 1.5V ● ±0.01 ±1 nA Input Leakage Current (HYST) ● ±0.02 ±1 nA VCM Comparator Input Common ● V – V + – 1.3V V Mode Range CMRR Common Mode Rejection Ratio V – to V + – 1.3V 0.1 1 mV/V PSRR Power Supply Rejection Ratio V + = 2V to 11V (LTC1441) 0.1 1 mV/V V + = 2.5V to 11V (LTC1440/LTC1442) 0.1 1 mV/V NOISE Voltage Noise 100Hz to 100kHz 100 µVRMS VHYST Hysteresis Input Voltage Range LTC1440/LTC1442 ● REF – 50mV REF V tPD Propagation Delay COUT = 100pF Overdrive = 10mV 14 µs Overdrive = 100mV 5 µs VOH Output High Voltage IO = – 8mA ● V + – 0.4V V Comparator VOL Output Low Voltage IO = 0.8mA LTC1440 ● GND + 0.4V V LTC1441/LTC1442 ● V – + 0.4V V Reference VREF Reference Voltage No Load LTC1440/LTC1442 0°C ≤ TA ≤ 70°C ● 1.170 1.182 1.194 V –40°C ≤ TA ≤ 85°C ● 1.164 1.200 V LTC1440 (MSOP, DFN) ● 1.164 1.200 V ISOURCE Reference Output Source Current ∆VREF ≤ 1mV (LTC1442) ● 60 120 µA ISINK Reference Output Sink Current ∆VREF ≤ 2.5mV (LTC1442) 10 20 µA ∆VREF Reference Source Current 0 ≤ ISOURCE ≤ 1mA (LTC1440) ● 0.8 5.5 mV Reference Sink Current 0 ≤ ISINK ≤ 10µA (LTC1440) 0.5 1.5 mV ● 5 mV NOISE Voltage Noise 100Hz to 100kHz 100 µVRMS Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. 144012fd 4
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