描述 Description

The TP1981 is a very fast comparator. These comparators are exceptionally versatile and easy to use. Features include an input common mode range from -0.2 V to VCC-1.5 V, low noise, TTL-/CMOS-compatible output drivers, and shutdown inputs.The device offers 3.5 ns propagation delay with 100 mV overdrive with4 mA typical quiescent current. The maximum detectable signal frequency exceeds 250MHz.

The TTL-/CMOS-compatible output stage is designed to drive up to 10 pF with full timing specs and to degrade in a graceful and linear fashion as additional capacitance is added. The comparator input stage offers robust protection against large input overdrive, and the output does not phase-reverse when the valid input signal range is exceeded.The TP1981 is available in a 6-lead SC70 package.

特性 Features

? Fully specified rail to rail at VCC = 2.5 V to 5.5 V

? Input common-mode voltage from -0.2 V to VCC - 1.5 V

? Low glitch CMOS-/TTL-compatible output stage

? 3.5 ns propagation delay

? Support 100pF capacitance loading

? 13.5 mW at 3.3 V

? Shutdown pin

? Replacement for ADCMP601/MAX999

? ?40°C to +125°C operation

應用 Application

? High speed instrumentation

? Clock and data signal restoration

? Logic level shifting or translation

? Pulse spectroscopy

? High speed line receivers

? Threshold detection

? Peak and zero-crossing detectors

? High speed trigger circuitry

? Pulse-width modulators

? Current/voltage-controlled oscillators

? Automatic test equipment (ATE)