GENERAL DESCRIPTION
The AD8469 is a fast comparator fabricated on XFCB2, an Analog Devices, Inc., proprietary process. This comparator is exceptionally versatile and easy to use. Features include an input range from VEE − 0.2 V to VCC + 0.2 V, low noise, TTL- and CMOS-compatible output drivers, adjustable hysteresis control, and a shutdown input. The device offers a 40 ns propagation delay driving a 15 pF load with 10 mV overdrive on 500 µA typical supply current.
A flexible power supply scheme allows the device to operate from a single +2.5 V positive supply with a −0.2 V to +2.7 V input signal range up to a +5.5 V positive supply with a −0.2 V to +5.7 V input signal range.
The TTL-/CMOS-compatible output stage is designed to drive up to 15 pF with full rated timing specifications and to degrade in a graceful and linear fashion as additional capacitance is added. The input stage of the comparator offers robust protection against large input overdrive, and the outputs do not phase reverse when the valid input signal range is exceeded.
The AD8469 is available in an 8-lead MSOP package and features a shutdown pin and hysteresis control. It is fully specified over an operating temperature range of −40°C to +125°C.

FEATURES
  Qualified for automotive applications
  Fully specified rail-to-rail at VCC = 2.5 V to 5.5 V
  Input common-mode voltage: VEE − 0.2 V to VCC + 0.2 V
  Low glitch TTL-/CMOS-compatible output stage
  40 ns propagation delay
  Low power: 1.4 mW at 2.5 V
  Shutdown pin
  Programmable hysteresis
  Power supply rejection better than −50 dB
  −40°C to +125°C operation

APPLICATIONS
  High speed instrumentation
  Clock and data signal restoration
  Logic level shifting or translation
  High speed line receivers
  Threshold detection
  Peak and zero-crossing detectors
  High speed trigger circuitry
  Pulse-width modulators
  Current/voltage controlled oscillators