Datasheet LTC1443, LTC1444, LTC1445 (Analog Devices) - 6

LTC1443/LTC1444/LTC1445
Typical perForMance characTerisTics Comparator Response Time Comparator Response Time Comparator Short-Circuit Sink vs Input Overdrive vs Input Overdrive Current vs Supply Voltage
5 5 200 TA = 25°C TA = 25°C TA = 25°C 4 100mV 10mV 4 180 100mV 50mV 3 3 20mV 160 50mV 20mV 2 2 10mV 140 OUT CONNECTED TO V+ 120 1 1 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 100 0 0 80 SINK CURRENT (mA) 60 0 100 40 100 0 20 INPUT VOLTAGE (mV) INPUT VOLTAGE (mV) 0 –1 0 2 4 6 8 10 –1 0 2 4 6 8 10 12 14 16 18 0 1 2 3 4 5 6 7 8 9 10 RESPONSE TIME (µs) RESPONSE TIME (µs) SUPPLY VOLTAGE (V) 144345 G10 144345 G11 144345 G12
Comparator Short-Circuit Source Comparator Response Time Current vs Supply Voltage vs Load Capacitance
160 12 140 10 t 120 PHL 100 OUT CONNECTED TO V– = GND = 0V 8 80 6 t 60 PLH RESPONSE TIME (µs) SOURCE CURRENT (mA) 40 4 20 0 2 0 1 2 3 4 5 0 20 40 60 80 100 SUPPLY VOLTAGE (V) LOAD CAPACITANCE (nF) 144345 G13 144345 G14
Supply Current Comparator Response Time at vs Comparator Input Frequency Low Supply Voltage
10000 10000 1000 1000 20mV OVERDRIVE 100 C 100 OUT = 55pF COUT = 15pF RESPONSE TIME (µs) SUPPLY CURRENT (µA) 10 10 100mV OVERDRIVE COUT = 5pF 1 1 1 10 100 1k 10k 100k 1 1.1 1.2 1.3 1.4 1.5 1.6 INPUT FREQUENCY (Hz) SUPPLY VOLTAGE (V) 144345 G15 144345 G16 144345fe 6 Document Outline Features Applications Description Absolute Maximum Ratings Typical Application Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Typical Application Related Parts