MAX3795ETG ,3.3 V +/-10%, 1 to 4.25 Gbps multirate VCSEL driver with diagnostic monitorfeatures.♦ 2mA to 15mA Modulation CurrentThe automatic power control (APC) adjusts the laser♦ 1mA t ..
MAX3795ETG+T ,1Gbps to 4.25Gbps Multirate VCSEL Driver with Diagnostic Monitorsfeatures.♦ 2mA to 15mA Modulation CurrentThe automatic power control (APC) adjusts the laser♦ 1mA t ..
MAX3798ETJ+ ,1.0625Gbps to 10.32Gbps, Integrated, Low-Power SFP+ Limiting Amplifier and VCSEL DriverFeaturesThe MAX3798 is a highly integrated limiting amplifier♦ Low Power Dissipation of 320mW at 3. ..
MAX3799ETJ+ ,1Gbps to 14Gbps, SFP+ Multirate Limiting Amplifier and VCSEL Driverapplications.♦ -21.5dBm Optical Sensitivity at 1.25Gbps Using aBy providing a selectable data path ..
MAX379CPE ,High-Voltage, Fault-Protected Analog MultiplexersMAX378/MAX37919-1902; Rev 1; 8/94High-Voltage, Fault-ProtectedAnalog Multiplexers_______________
MAX379CPE ,High-Voltage, Fault-Protected Analog MultiplexersApplicationsMAX378MJE -55°C to +125°C 16 CERDIPData Acquisition SystemsMAX378MLP -55°C to +125°C 20 ..
MAX7375AXR805+T ,3-Pin Silicon OscillatorApplications Information sec-MAX7375AXR185-T -40°C to +125°C 3 SC70-3tion for extended operating te ..
MAX737CPD ,-5V,-12V,-15V, and Adjustable Inverting Current-Mode PWM Regulatorsfeatures, along with
high efficiency and an application circuit that lends itself to
miniaturizat ..
MAX737CWE ,-5V,-12V,-15V, and Adjustable Inverting Current-Mode PWM RegulatorslVI/lXI/VI
-5V, -12V, -15V, and Adjustable
Inverting Gurrent-Mode PWM Regulators
MAX737CWE+T ,-12V, Inverting, PWM, Current-Mode DC-DC ConverterELECTRICAL CHARACTERISTICS
Bootstrapped Mode (Circuit of Figure 1, V+ = w, ILOAD = 0mA, DRV- = V ..
MAX737EPD ,-5V,-12V,-15V, and Adjustable Inverting Current-Mode PWM RegulatorsELECTRICAL CHARACTERISTICS
Bootstrapped Mode (Circuit of Figure 1, V+ = w, ILOAD = 0mA, DRV- = V ..
MAX7381AXR166+T ,3-Pin Silicon OscillatorApplicationsPART TEMP RANGE PIN-PACKAGEWhite GoodsMAX7381AXR106-T -40°C to +125°C 3 SC70-3Automotiv ..
MAX3795ETG
3.3 V +/-10%, 1 to 4.25 Gbps multirate VCSEL driver with diagnostic monitor
General DescriptionThe MAX3795 is a high-speed VCSEL driver for small-
form-factor (SFF) and small-form-factor pluggable (SFP)
fiber optic transmitters. It contains a bias generator, a
laser modulator, and comprehensive safety features.
The automatic power control (APC) adjusts the laser
bias current to maintain average optical power over
changes in temperature and laser properties. The dri-
ver accommodates common-cathode and differential
configurations.
The MAX3795 operates up to 4.25Gbps. It can switch
up to 15mA of laser modulation current and source up
to 15mA of bias current. Adjustable temperature com-
pensation is provided to keep the optical extinction
ratio within specifications over the operating tempera-
ture range. The MAX3795 interfaces with the Dallas
DS1856/DS1859 to meet SFF-8472 timing and diagnos-
tic requirements. The MAX3795 accommodates various
VCSEL packages, including low-cost TO-46 headers.
The MAX3795 safety circuit detects faults that could
cause hazardous light levels and disables the VCSEL
output. The safety circuits are compliant with SFF and
SFP multisource agreements (MSAs).
The MAX3795 is available in a compact 4mm ✕4mm,
24-pin thin QFN package and operates over the -40°C
to +85°C temperature range. The MAX3795 is pin-for-
pin compatible with the MAX3740A and is available in
lead-free packages.
ApplicationsMultirate (1Gbps to 4.25Gbps) SFP/SFF Modules
Gigabit Ethernet Optical Transmitters
Fibre-Channel Optical Transmitters
FeaturesSupports All SFF-8472 Digital Diagnostics 3.3V ±10% Single Supply2mA to 15mA Modulation Current1mA to 15mA Bias Current52ps Transition Time8.4ps Deterministic JitterOptional Peaking Current to Improve VCSEL Edge
SpeedSupports Common-Cathode and Differential
ConfigurationSafety Circuits Compliant with SFF and SFP
MSAsPin Compatible to MAX3740A
MAX3795
1Gbps to 4.25Gbps Multirate VCSEL
Driver with Diagnostic Monitors
Ordering Information19-3387; Rev 0; 8/04
Pin Configuration+Denotes lead-free package.
MAX3795
1Gbps to 4.25Gbps Multirate VCSEL Driver
with Diagnostic Monitors
ABSOLUTE MAXIMUM RATINGSStresses 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.
Supply Voltage (VCC)............................................-0.5V to +4.0V
Voltage at TX_DISABLE, IN+, IN-, FAULT,
SQUELCH, TC1, TC2, MODSET, PEAKSET, BIASSET,
BIAS, BIASMON, COMP, MD, REF,
PWRMON ...............................................-0.5V to (VCC+ 0.5V)
Voltage at OUT+, OUT-.........................(VCC- 2V) to (VCC+ 1V)
Current into FAULT............................................-1mA to +25mA
Current into OUT+, OUT-....................................................60mA
Continuous Power Dissipation (TA= +85°C)
24-Pin Thin QFN
(derate 20.8mW/°C above +85°C).................................1354mW
Storage Temperature Range.............................-55°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS(VCC= +2.97V to +3.63V, TA= -40°C to +85°C. Typical values are at VCC= +3.3V, TC1 and TC2 are shorted, PEAKSET open, TA=
MAX3795
1Gbps to 4.25Gbps Multirate VCSEL Driver
with Diagnostic Monitors
ELECTRICAL CHARACTERISTICS (continued)(VCC= +2.97V to +3.63V, TA= -40°C to +85°C. Typical values are at VCC= +3.3V, TC1 and TC2 are shorted, PEAKSET open, TA=
+25°C, unless otherwise noted.)
MAX3795
1Gbps to 4.25Gbps Multirate VCSEL Driver
with Diagnostic Monitors
ELECTRICAL CHARACTERISTICS (continued)(VCC= +2.97V to +3.63V, TA= -40°C to +85°C. Typical values are at VCC= +3.3V, TC1 and TC2 are shorted, PEAKSET open, TA=
+25°C, unless otherwise noted.)
Note 2:AC characteristics guaranteed by design and characterization.
Note 3:Measured by applying a pattern that contains 20µs of K28.5, followed by 5µs of zeros, then 20µs of K28.5, followed by 5µs
of ones. Data rate is equal to 2.5Gbps, with inputs filtered using 1.8GHz Bessel filters.
Note 4:Variation of bias monitor gain for any single part over the range of VCC, temperature, 3mA < IBIAS< 15mA.
Note 5:Deterministic jitter measured at 4.25Gbps with a K28.5 pattern (00111110101100000101).
MAX3795
1Gbps to 4.25Gbps Multirate VCSEL Driver
with Diagnostic Monitors
Typical Operating Characteristics(VCC= +3.3V, RTC= 0Ω, PEAKSET open, measured electrically with a 50Ωload AC-coupled to OUT+, TA= +25°C, unless otherwise
noted.)
