LTC1540 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. V+ = 3V, V– = GND = 0V unless otherwise noted. SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITSPower Supply V+ Supply Voltage Range l 2 11 V ICC Supply Current IN– – IN + = 80mV, HYST = REF, C-Grade l 0.28 0.61 µA IN– – IN + = 80mV, HYST = REF, I-Grade l 0.64 µA Comparator VOS Comparator Input Offset Voltage VCM = 2.5V ±12 mV l ±15 mV LTC1540CMS8/IMS8 l ±16 mV I + – IN Input Leakage Current (IN+, IN–) VIN = VIN = 1.5V l ±0.01 ±1 nA Input Leakage Current (HYST) l ±0.02 ±1 nA VCM Comparator Input Common Mode l V– V+ – 1.3V V 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 0.1 1 mV/V VHYST Hysteresis Input Voltage Range l REF – 50mV REF V tPD Propagation Delay COUT = 100pF Overdrive = 10mV 70 µs Overdrive = 100mV 60 µs VOH Output High Voltage IO = –8mA l V+ – 0.4V V VOL Output Low Voltage IO = 0.8mA l GND + 0.4V V Reference VREF Reference Voltage No Load (SO-8)/(DFN) Commercial l 1.158 1.182 1.206 V MS8 Commercial l 1.156 1.182 1.208 V (SO-8)/(MS8)/(DFN) Industrial l 1.152 1.182 1.212 V ∆VREF Load Regulation 0 ≤ ISOURCE ≤ 100µA l 0.75 3.5 mV 0 ≤ ISINK ≤ 10µA 0.5 1.5 mV l 5 mV Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 2: The θJA specified for the DD package is with minimal PCB heat may cause permanent damage to the device. Exposure to any Absolute spreading metal. Using expanded metal area on all layers of a board Maximum Rating condition for extended periods may affect device reduces this value. reliability and lifetime. 1540fb 4 For more information www.linear.com/LTC1540
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