LT1713/LT1714 Single/Dual, 7ns, Low Power, 3V/5V/5V Rail-to-Rail Comparators DESCRIPTIO U FEATURES The LT(R)1713/LT1714 are UltraFastTM 7ns, single/dual comparators featuring rail-to-rail inputs, rail-to-rail complementary outputs and an output latch. Optimized for 3V and 5V power supplies, they operate over a single supply voltage range from 2.4V to 12V or from 2.4V to 6V dual supplies. Ultrafast: 7ns at 20mV Overdrive 8.5ns at 5mV Overdrive Rail-to-Rail Inputs Rail-to-Rail Complementary Outputs (TTL/CMOS Compatible) Specified at 2.7V, 5V and 5V Supplies Low Power (Per Comparator): 5mA Output Latch Inputs Can Exceed Supplies Without Phase Reversal LT1713: 8-Lead MSOP Package LT1714: 16-Lead Narrow SSOP Package The LT1713/LT1714 are designed for ease of use in a variety of systems. In addition to wide supply voltage flexibility, rail-to-rail input common mode range extends 100mV beyond both supply rails and the outputs are protected against phase reversal for inputs extending further beyond the rails. Also, the rail-to-rail inputs may be taken to opposite rails with no significant increase in input current. The rail-to-rail matched complementary outputs interface directly to TTL or CMOS logic and can sink 10mA to within 0.5V of GND or source 10mA to within 0.7V of V +. U APPLICATIO S High Speed Automatic Test Equipment Current Sense for Switching Regulators Crystal Oscillator Circuits High Speed Sampling Circuits High Speed A/D Converters Pulse Width Modulators Window Comparators Extended Range V/F Converters Fast Pulse Height/Width Discriminators Line Receivers High Speed Triggers The LT1713/LT1714 have internal TTL/CMOS compatible latches for retaining data at the outputs. Each latch holds data as long as its latch pin is held high. Latch pin hysteresis provides protection against slow moving or noisy latch signals. The LT1713 is available in the 8-lead MSOP package. The LT1714 is available in the 16-lead narrow SSOP package. , LTC and LT are registered trademarks of Linear Technology Corporation. UltraFast is a trademark of Linear Technology Corporation. U TYPICAL APPLICATIO A 4x NTSC Subcarrier Voltage-Tunable Crystal Oscillator 5V 1N4148 1M 47k* LT1004-2.5 1M* 3.9k* LT1713/LT1714 Propagation Delay vs Input Overdrive VIN 0V TO 5V 9.0 1k* 5V 1M 2k 390 MV-209 VARACTOR DIODE 1M 100pF PROPAGATION DELAY (ns) 8.5 0.047F C SELECT (CHOOSE FOR CORRECT PLL LOOP RESPONSE) Y1** 15pF 100pF + LT1713 - FREQUENCY OUTPUT 2k 200pF 171314 TA01 * 1% FILM RESISTOR ** NORTHERN ENGINEERING LABS C-2350N-14.31818MHz 8.0 tPD+ 7.5 TA = 25C V + = 5V V - = 0V VSTEP = 100mV tPD- 7.0 6.5 6.0 5.5 5.0 0 10 20 40 50 30 INPUT OVERDRIVE (mV) 60 171314 TA02 1 LT1713/LT1714 W W W AXI U U ABSOLUTE RATI GS (Note 1) Supply Voltage V + to V - ............................................................ 12.6V V + to GND ........................................................ 12.6V V - to GND .............................................- 10V to 0.3V Differential Input Voltage ................................... 12.6V Latch Pin Voltage ...................................................... 7V Input and Latch Current ..................................... 10mA Output Current (Continuous) .............................. 20mA Operating Temperature Range ................ - 40C to 85C Specified Temperature Range (Note 2) ... - 40C to 85C Junction Temperature .......................................... 150C Storage Temperature Range ................. - 65C to 150C Lead Temperature (Soldering, 10 sec).................. 300C U U W PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW V+ +IN -IN V- 1 2 3 4 8 7 6 5 Q OUT Q OUT GND LATCH ENABLE LT1713CMS8 LT1713IMS8 -IN A 1 +IN A 2 LATCH ENABLE A 15 GND V- 3 14 Q A V+ 4 13 Q A V+ 5 12 Q B - 6 11 Q B +IN B 7 -IN B 8 10 GND LATCH 9 ENABLE B V MS8 PACKAGE 8-LEAD PLASTIC MSOP MS8 PART MARKING TJMAX = 150C, JA = 250C/ W LTRD LTUK ORDER PART NUMBER TOP VIEW 16 LT1714CGN LT1714IGN GN PART MARKING 1714 1714I GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 150C, JA = 120C/ W Consult factory for parts specified with wider operating temperatur