Datasheet LTC1440, LTC1441, LTC1442 (Analog Devices) - 3

LTC1440/LTC1441/LTC1442
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. V+ = 5V and V– = GND = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply
V + Supply Voltage Range ● 2.0 11.0 V ICC Supply Current IN + = IN – + 80mV LTC1440 0°C ≤ TA ≤ 70°C ● 2.1 4.0 µA HYST = REF (LTC1440/LTC1442) –40°C ≤ TA ≤ 85°C ● 4.4 µA LTC1441 ● 3.5 5.7 µA LTC1442 ● 3.5 5.7 µA
Comparator
VOS Comparator Input Offset Voltage VCM = 2.5V ● ±3 ±10 mV I + – IN Input Leakage Current (IN +, IN –) VIN = VIN = 2.5V ● ±0.01 ±1.0 nA Input Leakage Current (HYST) ● ±0.02 ±1.0 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 15 µs Overdrive = 100mV 8 µs VOH Output High Voltage IO = – 13mA ● V + – 0.4V V VOL Output Low Voltage IO = 1.8mA 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 1.194 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) ● 100 µA ISINK Reference Output Sink Current ∆VREF ≤ 2.5mV (LTC1442) 10 20 µA ∆VREF Reference Source Current 0 ≤ ISOURCE ≤ 2mA (LTC1440) ● 0.8 5 mV Reference Sink Current 0 ≤ ISINK ≤ 10µA (LTC1440) 0.5 1.5 mV ● 5 mV NOISE Voltage Noise 100Hz to 100kHz 100 µVRMS 144012fd 3