MAX3261
Single +5V, Fully Integrated,
1.25Gbps Laser Diode Driver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= V
CC
A = V
CC
B = +4.75V to +5.25V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and
T
A
= +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 (V
CC
A, V
CC
B)...............................-0.3V to 6V
VIN+, VIN-, FAILOUT...............................................0V to V
CC_
OUT+, OUT-, IBIASOUT .......................................1.5V to V
CC_
ENB+, ENB- .......................V
CC_
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 (T
A
= +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
T
A
= +25°C
(Note 2)
CONDITIONS
mA12I
REF
Available Reference Current
V3.15 3.3 3.55V
REF
mA60I
BIAS
Range of Programmable Laser
Bias Current
Reference Voltage
V0.8V
IL
TTL Input Low
mA50I
VCC
Supply Current
VV
CC
- 1.165V
IH
PECL Input High
VV
CC
- 1.475V
IL
PECL Input Low
V2V
IH
TTL Input High
UNITSMIN TYP MAXSYMBOLPARAMETER
AC ELECTRICAL CHARACTERISTICS
(V
CC
= V
CC
A = V
CC
B = +4.75V to +5.25V, R
LOAD
(at OUT+ and OUT-) = 25Ω connected to V
CC
, T
A
= -40°C to +85°C, unless other-
wise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 3)
Minimum differential input
swing is 1100mVp-p (Note 4)
CONDITIONS
mA30I
MOD
Range of Programmable
Modulation Current
UNITSMIN TYP MAXSYMBOLPARAMETER
I
BIAS
= 25mA, I
MOD
= 12mA, 4ns unit
interval; measured from 10% to 90%.
ps250t
R
, t
F
Modulation-Current Rise and
Fall Time
I
MOD
= 12mA,
T
A
= +25°C
%
±10
Aberrations, Rising and Falling
Edge
I
BIAS
= 25mA, I
MOD
= 12mA, 4ns unit interval ps80PWD
Modulation-Current Pulse-
Width Distortion
±15
Loaded with 2.7kΩ pull-up resistor to V
CC
V4.5V
OH
FAILOUT Output High
Loaded with 2.7kΩ pull-up resistor to V
CC
V0.5V
OL
FAILOUT Output Low
Note 1: Dice are tested at T
A
= +25°C.
Note 2: I
VCC
= I
VCC
A + I
VCC
B, I
BIAS
= 60mA, I
MOD
= 30mA, and I
PIN
= 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
