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MAX3744, MAX3745
2.7Gbps SFP Transimpedance Amplifiers with RSSI

2.7Gbps Transimpedance Amplifiers for Digital Diagnostic SFP Modules


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 372kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX3744/MAX3745 transimpedance amplifiers provide a compact, low-power solution for communication up to 2.7Gbps. They feature 330nA input-referred noise at 2.1GHz bandwidth (BW) with 0.85pF input capacitance. The parts also have >2mAP-P AC input overload.

Both parts operate from a single +3.3V supply and consume 93mW. The MAX3744/MAX3745 are in a compact 30-mil x 50-mil die and require no external compensation capacitor. A space-saving filter connection is provided for positive bias to the photodiode through an on-chip 580Ω resistor to VCC. These features allow easy assembly into a low-cost TO-46 or TO-56 header with a photodiode.

The MAX3744 and MAX3748A receiver chip set provides an RSSI output using a Maxim-proprietary* interface technique. The MAX3744 preamplifier, MAX3748A postamplifier, and DS1858/DS1859 SFP controller meet all the SFF-8472 digital diagnostic requirements.

An evaluation kit is available:  MAX3744EVKIT, MAX3745EVKIT  

Key Features   Applications/Uses
  • Up to 2.7Gbps (NRZ) Data Rates
  • RSSI Implementation in 4-Pin TO-46 Header (MAX3744)
  • 10psP-P Deterministic Jitter for <100µAP-P Input Current
  • 330nARMS Input-Referred Noise at 2.1GHz Bandwidth
  • 28mA Supply Current at +3.3V
  • 2GHz Small-Signal Bandwidth
  • 2.0mAP-P AC Overload
  • Die Size: 30 mils x 50 mils

 
  • Optimized for Small-Form-Factor Pluggable (SFP) Optical Receivers
  • Up to 2.7Gbps SFF/SFP Optical Receivers

    Key Specifications:  Transimpedance Amplifiers (TIA)
    Part Number Target Oper. Range
    (Gbps)
    Data Rate
    (Mbps)
    Data Rate
    (Mbps)
    VSUPPLY
    (V)
    ICC
    (mA)
    Input Noise
    (nA)
    BW
    (MHz)
    IIN
    (µA)
    ZT
    (kΩ)
    EV Kit Package/Pins Price
    min max typ max min max See Notes
    MAX3744  1 to 4.5 155 2700 3.3 28 300 2000 2000 3.5 Yes
    See Data Sheet/
    -
    MAX3745 
    See Data Sheet/
    -
    See All Transimpedance Amplifiers (TIA) (9)

    *Patent pending

    Diagram
    MAX3744, MAX3745: Functional Diagram
    Functional Diagram

    Application Notes
  • Application Note 2135: HFRD-04.0: 2.7Gbps, 1310nm Small Form Factor Pluggable (SFP) Transceiver - MAX3744
  • Application Note 2360: HFRD-05.0: Multi-Rate (1Gbps - 3.2Gbps) 850nm Small Form Factor Pluggable (SFP) Transceiver - MAX3744
  • Application Note 3376: HFRD-15.3: High-Frequency SFP Host Board (Includes Integrated RS-232 to I²C Conversion) - MAX3744, MAX3745
  • Application Note 3381: HFAN-03.2.0: Improving Noise Rejection of a PIN-TIA ROSA - MAX3744
  • Application Note 3766: HFTA-12.0: Measuring Crosstalk Penalty in High-Speed Bidirectional Serial Communication Modules - MAX3744, MAX3745

    Evaluation Kits
  • MAX3744EVKIT, MAX3745EVKIT

    Design Guides
  • Fiber (PDF)
  • Communications (PDF)

    Reliability Reports
  • Show FIT data for:
  • Request Reliability Report for:

    Software/Models
  • MAX3744ED IBIS Model
  • MAX3744E_D SPICE Input/Output Model

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    MAX3744 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3744E/D    
    Active WAFER SAWN;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: WSDICE*
    See data sheet
    MAX3745 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3745E/D    
    Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    See data sheet

    More Information
  • New Product Press Release 2003-08-01 

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     Description 
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    Document Ref.: 19-2927; Rev 2; 2005-12-14
    This page last modified: 2009-10-13


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