MAX3744

2.7Gbps SFP Transimpedance Amplifiers with RSSI

2.7Gbps Transimpedance Amplifiers for Digital Diagnostic SFP Modules


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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 interface technique. The MAX3744 preamplifier, MAX3748A postamplifier, and DS1858/DS1859 SFP controller meet all the SFF-8472 digital diagnostic requirements.
MAX3744, MAX3745: Functional Diagram MAX3744, MAX3745: Functional Diagram Enlarge+

Key Features

  • 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

Applications/Uses

  • Optimized for Small-Form-Factor Pluggable (SFP) Optical Receivers
  • Up to 2.7Gbps SFF/SFP Optical Receivers
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

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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Related Resources


Belle Isle 2020
05/29/2020 - 05/31/2020, Detroit, MI
2020 Detroit Grand Prix - Chevrolet Detroit Grand Prix presented by Lear Fast Facts The Chevrolet Detroit Grand Prix presented by Lear was hosted on Belle Isle, May 29 - 30 2020. The event featured the cars of the NTT IndyCar Series, the IMSA WeatherTech SportsCar Championship and the Trans Am Series presented by Pirelli. The weekend is collectively referred to as the Chevrolet Detroit Grand Prix presented by Lear and it once again featured the Chevrolet Dual in Detroit IndyCar doubleheader.

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