LT1116 12ns, Single Supply Ground-Sensing Comparator Fea T Descrip T n Ultra Fast (12ns Typ) The LT 1116 is an ultra fast (12ns) comparator designed n Operates off Single 5V Supply or 5V for sensing signals near the negative supply. The input n Input Common Mode Extends to Negative Supply common mode range extends from 2.5V below the n posi tive supply down to the negative supply rail. Like No Minimum Input Slew Rate Requirement n the LT1016, this comparator is specifically designed to Complementary TTL Output n inter face directly to TTL logic with complementary Inputs Can Exceed the Positive Supply Up to 15V outputs. The comparator may operate from either a single without Damaging the Comparator 5V supply or dual 5V supplies. Tight offset voltage n Low Offset Voltage specifications and high gain allow the LT1116 to be used n Pin-Compatible with LT1016 in precision applications. n Output Latch Capability Available in 8-Lead PDIP and SO Packages The LT1116 is designed for improved speed and stability for a wide range of operating conditions. The output stage a T provides active drive in both directions for maximum speed into TTL logic or passive loads, yet it has minimal cross- n High Speed A/D Converters conduction current. Unlike other fast comparators, the n Zero Crossing Detectors LT1116 remains stable even for slow transitions through n Current Sense for Switching Regulators the active region, which eliminates the need to specify a n Extended Range V to F Converters minimum input slew rate. n Fast Pulse Height/Width Discriminators n The LT1116 has an internal, TTL compatible latch for High Speed Triggers retaining data at the outputs. The latch holds data as n Line Receivers long as the latch pin is held high. Device parameters n High Speed Sampling Circuits such as gain, offset, and negative power supply current are not significantly affected by variations in negative L, LTC, LT, and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. supply voltage. Typical a T Comparator Response Time Fast Current Comparator for Current Mode Switching Regulator THRESHOLD LOGIC DRIVER M1 12ns 5V Q LT1116 C1 R SENSE Q 12ns R1 0 20 0 20 CONTROL INPUT BLANKING TIME (ns) LT1116 TA01 LT1116 TA02 1116fc 1 For more information www.linear.com/LT1116 OUTPUT V IN VOLTAGE V 100mV STEP OUT 1V/DIV 5mV OVERDRIVE + ion pplica ions pplica ion uresLT1116 a Te Maxi Mu M r a T (Note 1) + Supply Voltage (V ) to GND ........................................7V Latch Pin Voltage .............................Equal to Supplies Negative Supply Voltage (V ) ....................... 7V to GND Output Current (Continuous) ............................... 20mA Voltage Operating Temperature Range ..................... 0C to 70C Differential Input Voltage .................................... 15V Storage Temperature Range ..................65C to 150C Inputs Voltage (Either Input) ...........(V ) 0.3V to 15V Lead Temperature (Soldering, 10 sec) ...................300C p in c F T TOP VIEW TOP VIEW + + V 1 8 Q OUT V 1 8 Q OUT +IN Q OUT +IN 2 7 Q OUT 2 7 + + IN 3 6 GND IN 3 6 GND LATCH LATCH V 4 5 V 4 5 ENABLE ENABLE S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP T = 100C, = 160C/W T = 100C, = 130C/W JMAX JMAX JA JA o r Der i n F Ma T TUBE TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT1116CN8 PBF NA 1116 8-Lead PDIP 0C to 70C LT1116CS8 PBF LT1116CS8 TRPBF 1116 8-Lead Plastic SO 0C to 70C Consult LTC Marketing for parts specified with wider operating temperature ranges.*The temperature grade is identified by a label on the shipping container. Parts ending with PBF are RoHS and WEEE compliant. For more information on tape and reel specifications, go to: