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LTC1445CS 数据表(PDF) 3 Page - Linear Technology |
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LTC1445CS 数据表(HTML) 3 Page - Linear Technology |
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3 / 12 page  3 LTC1443/LTC1444/LTC1445 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS tPD Propagation Delay Overdrive = 10mV, COUT = 100pF 12 µs Overdrive = 100mV, COUT = 100pF 4 µs VOH Output High Voltage IO = – 15mA; LTC1443/LTC1445 q V+ – 0.4V V VOL Output Low Voltage IO = 1.8mA; LTC1443 q GND + 0.4V V IO = 1.8mA; LTC1444/LTC1445 q V– + 0.4V V Reference VREF Reference Voltage No Load, LTC1443 C Temp Range q 1.170 1.182 1.194 V I Temp Range q 1.164 1.200 V No Load, LTC1444/ C Temp Range q 1.209 1.221 1.233 V LTC1445 I Temp Range q 1.203 1.239 V ISOURCE Reference Output Source Current ∆VREF ≤ 1mV q 100 200 µA ISINK Reference Output Sink Current ∆VREF ≤ 2.5mV 10 15 µA ∆VREF ≤ 5mV q 10 15 µA Noise Voltage Noise 100Hz to 100kHz 100 µVRMS The q 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. The q 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: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply V+ Supply Voltage Range q 2.0 11.0 V ICC Supply Current IN+ = IN– = 80mV, HYST = REF q 58 µA Comparator VOS Comparator Input Offset Voltage VCM = 1.5V q ±3.0 ±10.0 mV IIN Input Leakage Current (IN+, IN–)VIN+ = VIN– = 1.5V q ±0.01 ±1.0 nA Input Leakage Current (HYST) LTC1444/LTC1445 q ±0.02 ±1.0 nA VCM Comparator Input Common Mode Range q 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 q REF – 50mV REF V tPD Propagation Delay Overdrive = 10mV, COUT = 100pF 14 µs Overdrive = 100mV, COUT = 100pF 5 µs VOH Output High Voltage IO = – 10mA, LTC1443/LTC1445 q V+ – 0.4V V VOL Output Low Voltage IO = 0.8mA; LTC1443 q GND + 0.4V V IO = 0.8mA; LTC1444/LTC1445 q V– + 0.4V V Reference VREF Reference Voltage No Load, LTC1443 C Temp Range q 1.170 1.182 1.194 V I Temp Range q 1.164 1.200 V No Load, LTC1444/ C Temp Range q 1.209 1.221 1.233 V LTC1445 I Temp Range q 1.203 1.239 V ISOURCE Reference Output Source Current ∆VREF ≤ 1mV q 60 120 µA ISINK Reference Output Sink Current ∆VREF ≤ 2.5mV 10 15 µA ∆VREF ≤ 5mV q 10 15 µA Noise Noise Voltage 100Hz to 100kHz 100 µVRMS |
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