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LTC1445CS 数据表(PDF) 4 Page - Linear Technology |
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LTC1445CS 数据表(HTML) 4 Page - Linear Technology |
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4 / 14 page  LTC1443/LTC1444/LTC1445 4 144345fe elecTrical characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = 5V, V– = GND = 0V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply V+ Supply Voltage Range l 2.0 11.0 V ICC Supply Current IN+ = IN– = 80mV, HYST = REF l 5 8 µA Comparator VOS Comparator Input Offset Voltage VCM = 1.5V l ±3.0 ±10.0 mV IIN Input Leakage Current (IN+, IN–) VIN+ = VIN– = 1.5V l ±0.01 ±1.0 nA Input Leakage Current (HYST) LTC1444/LTC1445 l ±0.02 ±1.0 nA VCM Comparator Input Common Mode Range l V– V+ – 1.3V V CMRR Common Mode Rejection Ratio V– to (V+ – 1.3V) 0.1 1.0 mV/V PSRR Power Supply Rejection Ratio V+ = 2V to 11V 0.1 1.0 mV/V Noise Voltage Noise 100Hz to 100kHz 100 µVRMS VHYST Hysteresis Input Voltage Range LTC1444, LTC1445 l REF – 50mV REF V tPD Propagation Delay Overdrive = 10mV, COUT = 100pF Overdrive = 100mV, COUT = 100pF 14 5 µs µs VOH Output High Voltage IO = –10mA; LTC1443/LTC1445 l V+ – 0.4V V VOL Output Low Voltage IO = 0.8mA; LTC1443 IO = 0.8mA; LTC1444/LTC1445 l l GND + 0.4V V– + 0.4V V V Reference VREF Reference Voltage No Load, LTC1443 C Temp Range l 1.170 1.182 1.194 V I Temp Range l 1.164 1.200 V No Load, LTC1444/ LTC1445 C Temp Range l 1.209 1.221 1.233 V I Temp Range l 1.203 1.239 V ISOURCE Reference Output Source Current ∆VREF ≤ 1mV l 60 120 µA ISINK Reference Output Sink Current ∆VREF ≤ 2.5mV ∆VREF ≤ 5mV l 10 10 15 15 µA µA Noise Noise Voltage 100Hz to 100kHz 100 µVRMS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V+ = 3V, V– = GND = 0V, unless otherwise noted. 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. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOH Output High Voltage IO = –15mA; LTC1443/LTC1445 l V+ – 0.4V V VOL Output Low Voltage IO = 1.8mA; LTC1443 IO = 1.8mA; LTC1444/LTC1445 l l GND + 0.4V V– + 0.4V V V Reference VREF Reference Voltage No Load, LTC1443 C Temp Range l 1.170 1.182 1.194 V I Temp Range l 1.164 1.200 V No Load, LTC1444/ LTC1445 C Temp Range l 1.209 1.221 1.233 V I Temp Range l 1.203 1.239 V ISOURCE Reference Output Source Current ∆VREF ≤ 1mV l 100 200 µA ISINK Reference Output Sink Current ∆VREF ≤ 2.5mV ∆VREF ≤ 5mV l 10 10 15 15 µA µA Noise Voltage Noise 100Hz to 100kHz 100 µVRMS |
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