MAX3865†

Voltage at Any Pin...................................................................+7.0V
Supply Voltage (VCC) ................................................-0.5V to +7.0V
Voltage at VCR, VDR, DATA+, DATA-,
CLOCK+, and CLOCK- Pins ..............................-0.5V to (VCC + 0.5V)
Voltage at DATA+ and
DATA- Pins ............................................(VDR - 1.2V) to (VDR + 1.2V)
Voltage at CLK+ and CLK- Pins .............(VCR - 1.2V) to (VCR + 1.2V)
Voltage at MODQ and MODN Pins ........................0V to (VCC + 1.5V)
Voltage at Any Other Pins (RTEN, EN0, EN1, FAIL,
MODMAX, BIASMAX, AMCSET, APCSET, MD_X, BIAS,
BIAS_X, BIASMON, MODMON) ..........................-0.5V to (VCC + 0.5V).
Current into BIAS Pin ............................................-20mA to +150mA
Current into MODQ and MODN Pins ......................-20mA to +100mA
Current into MD Pin.................................................-10mA to +10mA
Operating Junction Temperature .........................-55°C to +150°C
Storage Temperature Range ...............................-55°C to +150°C
Continuous Power Dissipation (TA = +85°C)
32-Pin QFN (derate 21.2mW/°C above +85°C) ......................1.3W
Lead Temperature (soldering, 10s) ......................................+300°C
Processing Temperature (die) ..............................................+400°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX3865† is designed for direct modulation of laser diodes at data rates up to 2.5Gbps. It incorporates two feedback loops, the automatic power-control (APC) loop and the automatic modulation-control (AMC) loop, to maintain constant average optical output and extinction ratio over temperature and laser lifetime. External resistors or current output DACs may set the laser output levels. The driver MAX3865† can deliver up to100mA of laser bias current and up to 60mA laser modulation current with a typical (20% to 80%) edge speed of 84ps.

The MAX3865† accepts differential clock and data input signals with on-chip 50 termination resistors. The inputs can be configured for CML or other high-speed logic. An input data-retiming latch can be enabled to reject input pattern-dependent jitter when a clock signal is available. The MAX3865† provides laser bias current and modulation current monitors, as well as a failure detector, to indicate the laser operating status. These features of MAX3865† are all implemented on an 81mil ✕ 103mil die; the MAX3865 is also
available as a 32-pin QFN package.