MAX3735A

2.7Gbps, Low-Power SFP Laser Drivers

Multirate 3.3V Laser Driver for SFP Modules Meets All Requirements for SFF-8472 Digital Diagnostics


Please check latest availability status for a specific part variant.

Description

The MAX3735A is a +3.3V laser driver for SFP/SFF applications from 155Mbps up to 2.7Gbps. The device accepts differential input data and provides bias and modulation currents for driving a laser. DC-coupling to the laser allows for multirate applications and reduces the number of external components. The MAX3735A is fully compliant with the SFP MSA timing and the SFF-8472 transmit diagnostic requirements.

An automatic power-control (APC) feedback loop is incorporated to maintain a constant average optical power over temperature and lifetime. The wide modulation current range of 10mA to 60mA (up to 85mA AC-coupled) and bias current of 1mA to 100mA make this product ideal for driving FP/DFB laser diodes in fiber-optic modules. The resistor range for the laser current settings is optimized to interface with the DS1858 SFP controller IC.

The MAX3735A provides transmit-disable control, a single-point latched transmit-failure monitor output, photocurrent monitoring, and bias-current monitoring to indicate when the APC loop is unable to maintain the average optical power.

The MAX3735A is available in a 4mm x 4mm TQFN package and operates over the extended temperature range of -40°C to +85°C.

MAX3735, MAX3735A: Typical Application Circuit MAX3735, MAX3735A: Typical Application Circuit Enlarge+

Key Features

  • Fully Compliant with SFP and SFF-8472 MSAs
  • Programmable Modulation Current from 10mA to 60mA (DC-Coupled)
  • Programmable Modulation Current from 10mA to 85mA (AC-Coupled)
  • Programmable Bias Current from 1mA to 100mA
  • Edge Transition Times <51ps
  • 27mA (typ) Power-Supply Current
  • Multirate 155Mbps to 2.7Gbps Operation
  • Automatic Average Power Control
  • On-Chip Pullup Resistor for TX_Disable
  • 24-Pin 4mm x 4mm QFN package

Applications/Uses

  • 1G/2G Fibre Channel SFF/SFP Optical Transceiver Modules
  • Gigabit Ethernet SFF/SFP Transceiver Modules
  • Multirate OC-3 to OC-48 FEC SFF/SFP Transceiver Modules
Part NumberTarget Oper. Range
(Gbps)
Data Rate
(Mbps)
Data Rate
(Mbps)
VSUPPLY
(V)
ICC
(mA)
I/O TypeIMOD
(mA)
IBIAS
(mA)
Package/PinsBudgetary
Price
minmaxtypmaxmaxSee Notes
MAX3735A 1 to 4.515527003.327CML60100
SOIC(N)/8
$1.87 @1k
See All Laser Drivers (22)
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.


MAX3735AEVKIT: Evaluation Kit for the MAX3735A
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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