Low-Noise, Fibre Channel Transimpedance Amplifiers

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The MAX3275/MAX3277 transimpedance amplifiers provide a compact low-power solution for communication up to 2.125Gbps. They feature 300nA input-referred noise at 2.1GHz bandwidth (BW) with 0.85pF input capacitance. The parts also have 2mAP-P AC input overload.

The MAX3277 is identical to the MAX3275, but with the output polarities inverted for optimum packaging flexibility. Both parts operate from a single 3.3V supply and consume only 83mW. The MAX3275/MAX3277 are compact 24mil x 47mil die and require no external compensation capacitor. A space-saving filter connection is provided for positive bias to the photodiode through an on-chip 600Ω resistor to VCC. These features allow easy assembly into a TO-46 or TO-56 header with a photodiode.

The MAX3275/MAX3277 and MAX3274 limiting amplifiers provide a two-chip solution for dual-rate, fibre channel receiver applications.
MAX3275, MAX3277: Typical Application Circuit MAX3275, MAX3277: Typical Application Circuit Enlarge+

Key Features

  • Up to 2.125Gbps (NRZ) Data Rates
  • 7psP-P Deterministic Jitter for <100µAP-P Input Current
  • 300nARMS Input-Referred Noise at 2.1GHz Bandwidth
  • 25mA Supply Current at +3.3V
  • 2.3GHz Small-Signal Bandwidth
  • 2.0mAP-P AC Overload
  • Die Size: 24mil x 47mil
  • Applications/Uses

    • Dual-Rate Fibre Channel Optical Receivers
    • Gigabit Ethernet Optical Receivers

    See parametric specs for Transimpedance Amplifiers (TIA) (15)

    Part NumberTarget Oper. Range
    Data Rate
    Data Rate
    Input Noise
    MAX3275 2.125106221253.325300270020003.3

    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.

    MAX3277EVKIT: Evaluation Kit for the MAX3277
    Product Reliability Reports: MAX3275.pdf 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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