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LTC1042CN8 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1042CN8 Datasheet(HTML) 3 Page - Linear Technology |
3 / 8 page 3 LTC1042 1042fa SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS REXT External Timing Resistor Resistor connected between V + ● 100 10,000 kΩ and OSC Pin fS Sampling Frequency V+ = 5V, TA = 25°C5 Hz REXT =1MΩ, CEXT = 0.1µF Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Applies over input voltage range limit and includes gain uncertainty. Note 3: Center error = [(VU +VL)/2 – CENTER] (where VU = upper band limit and VL = lower band limit). Note 4: Width error = (VU –VL – 2 • WIDTH/2) (where VU = upper band limit and VL = lower band limit). Note 5: RIN is guaranteed by design and is not tested. RIN = 1/(fS x 66pF). Note 6: Average supply current = TD • lS(ON) • fS + (1 –TD fS) IS(OFF). Note 7: Response time is set by an internal oscillator and is independent of overdrive voltage. TD is guaranteed by correlation test and is not directly measured. TYPICAL PERFOR A CE CHARACTERISTICS Normalized Sampling Frequency vs V+, Temperature IS(ON) vs V + SUPPLY VOLTAGE, V+ (V) 2 0 2 6 8 10 20 14 6 10 12 LTC1042 • TPC01 4 16 18 12 4 8 14 16 25°C 125°C –55°C SUPPLY VOLTAGE, V+ (V) 0 1.4 1.8 16 LTC1042 • TPC02 1.0 0.6 4 8 12 2 6 10 14 2.2 1.2 1.6 0.8 2.0 TA = 125°C TA = 25°C TA = –55°C R = 1M, C = 0.1µF The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Response Time vs Temperature RIN vs Sampling Frequency AMBIENT TEMPERATURE, TA (°C) –50 40 50 70 80 90 50 130 LTC1042 • TPC05 60 0 –25 100 75 25 125 100 110 120 V+ = 5V SAMPLING FREQUENCY, fS (Hz) 1 107 109 1011 102 104 103 10 LTC1042 • TPC06 108 1010 SUPPLY VOLTAGE, V+ (V) 2 90 100 110 812 LTC1042 • TPC04 80 70 46 10 14 16 60 50 TA = 25°C Response Time vs Supply Voltage Sampling Rate vs REXT CEXT ELECTRICAL CHARACTERISTICS REXT (Ω) 100k 0.1 1 10 102 103 1M 10M LTC1042 • TPC03 CEXT = 1000pF CEXT = 0.01µF CEXT = 0.1µF CEXT = 1µF CEXT = 0.05µF |
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