LTC6702 Tiny Micropower, Low Voltage Dual Comparators FEATURESDESCRIPTION n Low Supply Operation: 1.7V Minimum The LTC®6702 is an extremely small dual comparator n Low Supply Current: 30μA/Comparator Maximum designed to maximize battery life while providing both n Propagation Delay: 500ns Maximum (–40°C to speed and low voltage operation in applications where 125°C) board space is a premium. n 3.2MHz Toggle Frequency These comparators operate on supplies between 1.7V and n Input Voltage Range Extends 100mV Below Ground 5.5V, and have a maximum guaranteed propagation delay n Internal Hysteresis: 4mV of 500ns while drawing only 30μA maximum quiescent n High Output Drive: TTL and CMOS Compatible current. Internal hysteresis desensitizes the LTC6702 to Specifi ed at ±15mA (–40°C to 125°C), input noise and makes it easy to use, even with slow mov- Capacitive Load Handling to 10,000pF ing signals. CMOS inputs allow the use of large source n Specifi ed for –40°C to 125°C Temperature Range impedances. n Available in Low Profi le (1mm) ThinSOT™ and 2mm × 2mm DFN Packages The LTC6702 is available in the 8-pin SOT-23 and the tiny 2mm × 2mm DFN package. APPLICATIONS L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other n Battery Powered Systems trademarks are the property of their respective owners. n Window Comparators n Threshold Detectors/Discriminators n Clock Regeneration n Automotive Sensing and Controls TYPICAL APPLICATIONClock Regeneration CircuitPropagation Delay vs Input Overdrive V + = 3V 600 V+ = 5V CLOAD = 10pF IN LT6650 VSTEP = 100mV TA = 25°C 1/2 LTC6702 500 VR = 400mV + FALLING REFERENCE OUT – 400 C1 RISING 0.1μF – 1k 0.1μF RECOVERED + 300 CLOCK (UP TO 3.2MHz) FB PROPAGATION DELAY (ns) 200 6702 TA01 CLOCK INPUT > 100mV 100 P-P 0 10 20 30 40 50 60 70 80 INPUT OVERDRIVE (mV) 6702 TA01b 6702fa 1
