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AD8465:  Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply LVDS Comparator

Product Details

Product Status:Recommended for New Designs

The AD8465 is a very fast comparator fabricated on the Analog Devices, Inc., proprietary XFCB2 process. This comparator is exceptionally versatile and easy to use. Features include an input range from VEE − 0.5 V to VCCI + 0.2 V, low noise, LVDS-compatible output drivers, and TTL/CMOS latch inputs with adjustable hysteresis and/or shutdown inputs. The device offers 1.6 ns propagation delay with 1 ps rms random jitter (RJ). Overdrive and slew rate dispersion are typically less than 50 ps.

A flexible power supply scheme allows the devices to operate with a single 2.5 V positive supply and a −0.5 V to +2.7 V input signal range up to a 5.5 V positive supply with a −0.5 V to +5.7 V input signal range. Split input/output supplies, with no sequencing restrictions, support a wide input signal range with greatly reduced power consumption.

The LVDS-compatible output stage is designed to drive any standard LVDS input. The comparator input stage offers robust protection against large input overdrive, and the outputs do not phase reverse when the valid input signal range is exceeded. High speed latch and programmable hysteresis features are also provided in a unique single-pin control option. The AD8465 is available in a 12-lead LFCSP.
Applications

  • 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)
  • Automotive
  • FEATURES and BENEFITS

    • Fully specified rail to rail at VCCI = 2.5 V to 5.5 V
    • Input common-mode voltage from −0.2 V to VCCI + 0.2 V
    • Low glitch LVDS-compatible output stage
    • Propagation delay: 1.6 ns
    • Power dissipation: 37 mW at 2.5 V
    • Shutdown pin
    • Single-pin control for programmable hysteresis and latch
    • Power supply rejection > 60 dB
    • −40°C to +125°C operation

    Evaluation Kits & Symbols & Footprints

    Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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    Price, packaging, availability

    AD8465 Model Options
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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