MAX3261ECJ datasheet(2/12 Pages) MAXIM

2 / 12 page

Single +5V, Fully Integrated,

1.25Gbps Laser Diode Driver

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC = VCCA = VCCB = +4.75V to +5.25V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and

TA = +25°C.) (Note 1)

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.

Terminal Voltage (with respect to GND)

Supply Voltages (VCCA, VCCB) ...............................-0.3V to 6V

VIN+, VIN-, FAILOUT...............................................0V to VCC_

OUT+, OUT-, IBIASOUT .......................................1.5V to VCC_

ENB+, ENB- .......................VCC_ or 5.5V, whichever is smaller

Differential Input Voltage (

|VIN+ - VIN-|) ...........................3.8V

Input Current

IBIASOUT ............................................................0mA to 75mA

OUT+, OUT- ........................................................0mA to 40mA

IBIASSET ........................................................0mA to 1.875mA

IMODSET...............................................................0mA to 2mA

IPIN, IPINSET, OSADJ...........................................0mA to 2mA

FAILOUT..............................................................0mA to 10mA

IBIASFB................................................................-2mA to 2mA

Output Current

VREF1, VREF2.....................................................0mA to 20mA

SLWSTRT ..............................................................0mA to 5mA

Continuous Power Dissipation (TA = +70°C)

TQFP (derate 10.2mW/°C above +70°C)......................816mW

Operating Temperature Ranges

MAX3261CCJ ......................................................0°C to +70°C

MAX3261ECJ ...................................................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-55°C to +175°C

Processing Temperature (die) .........................................+400°C

TA = +25°C

(Note 2)

CONDITIONS

IREF

Available Reference Current

3.15

3.3

3.45

VREF

IBIAS

Range of Programmable Laser

Bias Current

Reference Voltage

0.8

VIL

TTL Input Low

IVCC

Supply Current

VCC - 1.165

VIH

PECL Input High

VCC - 1.475

VIL

PECL Input Low

VIH

TTL Input High

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

AC ELECTRICAL CHARACTERISTICS

(VCC = VCCA = VCCB = +4.75V to +5.25V, RLOAD (at OUT+ and OUT-) = 25Ωconnected to VCC, TA = -40°C to +85°C, unless other-

wise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 3)

Minimum differential input

swing is 1100mVp-p (Note 4)

CONDITIONS

IMOD

Range of Programmable

Modulation Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

IBIAS = 25mA, IMOD = 12mA, 4ns unit

interval; measured from 10% to 90%.

250

tR, tF

Modulation-Current Rise and

Fall Time

IMOD = 12mA,

TA = +25°C

±10

Aberrations, Rising and Falling

Edge

IBIAS = 25mA, IMOD = 12mA, 4ns unit interval

PWD

Modulation-Current Pulse-

Width Distortion

±15

Loaded with 2.7k

Ωpull-up resistor to VCC

4.5

VOH

FAILOUT Output High

Loaded with 2.7k

Ωpull-up resistor to VCC

0.5

VOL

FAILOUT Output Low

Note 1: Dice are tested at TA = +25°C.

Note 2: IVCC = IVCCA + IVCCB, IBIAS = 60mA, IMOD = 30mA, and IPIN = 140µA.

Note 3: AC characteristics are guaranteed by design and characterization.

Note 4: An 1100mVp-p differential is equivalent to complementary 550mVp-p signals on VIN+ and VIN-.

MAX3261E/D

MAX3261ECJ

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