+3.3V, 2.5Gbps Low-Power Limiting Amplifiers


The MAX3272/MAX3272A 2.5Gbps limiting amplifiers accept a wide range of input voltages and provide a constant-level output voltage with controlled edge speeds. Additional features include power detectors with programmable loss-of-signal (LOS) indication, an optional squelch function that mutes the data output signal when the input voltage falls below a programmable threshold, and an output polarity selector. These parts exhibit excellent jitter performance and have low power dissipation.

The MAX3272/MAX3272A feature current-mode logic (CML) data outputs that are tolerant of inductive connectors, and are available in a 4mm x 4mm QFN package or in die form (MAX3272 only). Along with the MAX3271, the MAX3272/MAX3272A are ideal for low-power, compact optical receivers.
MAX3272, MAX3272A: Typical Operating Circuit MAX3272, MAX3272A: Typical Operating Circuit Enlarge+

Key Features

  • Single +3.3V Power Supply
  • 33mA Supply Current
  • 5ps Deterministic Jitter
  • 90ps Edge Speed
  • Output Squelch Function
  • Programmable Loss-of-Signal Function
  • CML Output Interface
  • 20-Pin 4mm x 4mm QFN Package
  • Selectable Output Polarity
  • Applications/Uses

    • 2.5Gbps Optical Receivers
    • Fibre Channel Optical Receivers
    • Gigabit Ethernet Optical Receivers
    • SONET/SDH Receivers
    • System Interconnects
    Part Number Target Oper. Range
    Data Rate
    Data Rate
    I/O Type Input Sens.
    LOS Sens.
    Edge Speed
    Package/Pins Budgetary
    min max typ min max See Notes
    MAX3272A  1 to 4.5 2125 2500 3.3 33 CML 15 4.5 130
    $4.79 @1k
    See All Limiting Amplifiers (11)
    Pricing Notes:
    This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    MAX3272EVKIT: Evaluation Kit for the MAX3272
    MAX3272AEVKIT: Evaluation Kit for the MAX3272A

    Quality and Environmental Data

    Product Reliability Reports: MAX3272A.pdf 
    Lead-Free Package Tin (Sn) Whisker Reports

    Related Resources