Datasheet LTC1540 (Analog Devices) - 5

LTC1540
TYPICAL PERFORMANCE CHARACTERISTICS Reference Voltage Supply Current vs Temperature Reference Voltage vs Temperature Load Regulation (Sink)
0.5 1.190 10 V+ = 5V V+ = 5V V+ = 5V 1.188 V– = GND = 0V 9 V– = GND = 0V V– = GND = 0V 0.4 8 TA = 25°C V+ = 3V 1.186 V– = GND = 0V 1.184 7 0.3 6 1.182 (mV) 5 V+ = 2V 1.180 REF 0.2 V– = GND = 0V ∆V 4 1.178 3 SUPPLY CURRENT (µA) REFERENCE VOLTAGE (V) 0.1 1.176 2 1.174 1 0 1.172 0 –60 –40 –20 0 20 40 60 80 100 –60 –40 –20 0 20 40 60 80 100 0 5 10 15 20 25 30 35 40 TEMPERATURE (°C) TEMPERATURE (°C) OUTPUT SINK CURRENT (µA) 1540 G01 1540 G02 1540 G03
Reference Voltage Comparator Output Voltage (High) Comparator Output Voltage (Low) Load Regulation (Source) vs Load Current vs Load Current
5 5 2.5 V+ = 5V TA = 25°C TA = 25°C V– = GND = 0V V+ = 5V 4 TA = 25°C 4 2.0 V+ = 3V V+ = 5V V+ = 2V 3 3 1.5 (mV) REF V+ = 3V ∆V 2 2 1.0 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 1 1 0.5 V+ = 2V 0 0 0 0 1 2 3 4 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 OUTPUT SOURCE CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 1540 G04 1540 G05 1540 G06
Comparator Short-Circuit Current Comparator Response Time vs Supply Voltage vs Input Overdrive Hysteresis Control
200 80 80 TA = 25°C TA = 25°C 180 75 V+ = 5V 60 V– = GND = 0V 160 OUTPUT 70 CONNECTED TO 40 140 V– = GND = 0V; 65 SOURCE 120 20 CURRENT 60 100 55 t 0 OUTPUT PLH 80 TIME (µs) 50 CURRENT (mA) CONNECTED t –20 PHL 60 TO V+; SINK 45 CURRENT –40 40 40 DIFFERENTIAL INPUT VOLTAGE (V) 20 35 –60 0 30 –80 0 1 2 3 4 5 6 7 8 9 10 10 20 30 40 50 60 70 80 90 100 110 0 10 20 30 40 50 SUPPLY VOLTAGE (V) INPUT VOLTAGE (mV) VREF – VHYST (mV) 1540 G07 1540 G08 1540 G09 1540fb For more information www.linear.com/LTC1540 5