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LT1671 Datasheet(PDF) 1 Page - Linear Technology |
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LT1671 Datasheet(HTML) 1 Page - Linear Technology |
1 / 12 page 1 LT1671 60ns, Low Power, Single Supply, Ground-Sensing Comparator OVERDRIVE (mV) 0 140 120 100 80 60 40 20 10 20 30 40 1671 TA02 50 VS = ±5V VSTEP = 100mV TA = 25°C RL = 1M FALLING EDGE (tPDHL) RISING EDGE (tPDLH) Propagation Delay vs Overdrive 1MHz Crystal Oscillator 1671 TA01 – + LT1671 5V OUTPUT 0.068 µF 1671 TA01 2k 2k 2k 1MHz CRYSTAL (AT-CUT) , LTC and LT are registered trademarks of Linear Technology Corporation. The LT ®1671 is a low power 60ns comparator with comple- mentary outputs and latch. The input common mode range extends from 1.5V below the positive supply down to the negative supply rail. Like the LT1394, LT1016 and LT1116, this comparator has complementary outputs designed to interface directly to TTL or CMOS logic. The LT1671 may operate from either a single 5V supply or dual ±5V supplies. Low offset voltage specifications and high gain allow the LT1671 to be used in precision applications. The LT1671 is designed for improved speed and stability for a wide range of operating conditions. The output stage provides active drive in both directions for maximum speed into TTL, CMOS or passive loads with minimal cross-conduction current. Unlike other fast comparators, the LT1671 remains stable even for slow transitions through the active region, which eliminates the need to specify a minimum input slew rate. The LT1671 has an internal, TTL/CMOS compatible latch for retaining data at the outputs. The latch holds data as long as the LATCH pin is held high. Device parameters such as gain, offset and negative power supply current are not significantly affected by variations in negative supply voltage. s Low Power: 450 µA s Fast: 60ns at 20mV Overdrive 85ns at 5mV Overdrive s Low Offset Voltage: 0.8mV s Operates Off Single 5V or Dual ±5V Supplies s Input Common Mode Extends to Negative Supply s No Minimum Input Slew Rate Requirement s Complementary TTL Outputs s Inputs Can Exceed Supplies without Phase Reversal s Pin Compatible with LT1394, LT1016 and LT1116 s Output Latch Capability s Available in 8-Lead MSOP and SO Packages s High Speed A/D Converters s Zero-Crossing Detectors s Current Sense for Switching Regulators s Extended Range V/F Coverters s Fast Pulse Height/Width Discriminators s High Speed Triggers s Line Receivers s High Speed Sampling Circuits DESCRIPTIO FEATURES APPLICATIO S TYPICAL APPLICATIO |
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