MAX3738ETG+T by Analog Devices

155Mbps to 4.25Gbps SFF/SFP Laser Driver with Extinction Ratio Control


The MAX3738 is a +3.3V laser driver designed for multirate transceiver modules with data rates from 1Gbps to 4.25Gbps. Lasers can be DC-coupled to the MAX3738 for reduced component count and ease of multirate operation. Laser extinction ratio control (ERC) combines the features of automatic power control (APC), modulation compensation, and built-in thermal compensation. The APC loop maintains constant average optical power. Modulation compensation increases the modulation current in proportion to the bias current. These control loops, combined with thermal compensation, maintain a constant optical extinction ratio over temperature and lifetime. The MAX3738 accepts differential data input signals. The wide 5mA to 60mA (up to 85mA AC-coupled) modulation current range and up to 100mA bias current range, make the MAX3738 ideal for driving FP/DFB lasers in fiber optic modules. External resistors set the required laser current levels. The MAX3738 provides transmit disable control (TX_DISABLE), single-point fault tolerance, bias-current monitoring, and photocurrent monitoring. The device also offers a latched failure output (TX_FAULT) to indicate faults, such as when the APC loop is no longer able to maintain the average optical power at the required level. The MAX3738 is compliant with the SFF-8472 transmitter diagnostic and SFP MSA timing requirements. The MAX3738 is offered in a 4mm x 4mm, 24-pin thin QFN package and operates over the extended -40°C to +85°C temperature range.

Where to Buy

Prices starting from US$1.99

Distributor Stock
Logo for Farnell
Farnell
from US$2.01
No stock
Buy Now
Logo for Analog Devices
Analog Devices
from US$2.15
879
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$1.99
-
Buy Now
Logo for element14
element14
from US$2.08
-
Buy Now

Features

Single +3.3V Power Supply
47mA Power-Supply Current
85mA Modulation Current
100mA Bias Current
Automatic Power Control (APC)
Modulation Compensation
On-Chip Temperature Compensation
Self-Biased Inputs for AC-Coupling
Ground-Referenced Current Monitors
Laser Shutdown and Alarm Outputs
Enable Control and Laser Safety Feature

Specifications

Target Oper. Range (Gbps) 1 to 4.5<1
Data Rate (Mbps) (min) 155
Data Rate (Mbps) (max) 4250
VSUPPLY (V) 3.3
ICC (mA) (typ) 47
I/O Type CML
IMOD (mA) (max) 85
IBIAS (mA) (max) 100
Package/Pins TQFN/24
BudgetaryPrice (See Notes) 1.55


MAX3738ETG+T Semiconductors - ICs by Analog Devices

LASER DRIVER 4.25GBPS TQFN-24

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Laser Driver Type SFP / SFF Optical Modules
Driver Case Style TQFN
No. of Pins 24Pins
Supply Voltage Min 2.97V
Supply Voltage Max 3.63V
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

155Mbps to 4.25Gbps SFF/SFP La | Analog Devices
Laser Driver, 4.25Gbps, Tqfn-24 | Newark Electronics
LASER DRIVER, 4.25GBPS, TQFN-24 | Farnell

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX3738ETG+T ?

Additional datasheets, footprints and schematics for MAX3738ETG+T are listed on our Part Details page. You can also find images and similar parts to MAX3738ETG+T on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX3738ETG+T on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX3738ETG+T price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX3738ETG+T you can contact the distributor directly for product support, shipping queries etc.

Is the MAX3738ETG+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX3738ETG+T have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX3738ETG+T .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX3738ETG+T often in real-time on the comparison pages.

What if I can't find stock of MAX3738ETG+T ?

You can fill out our help required form which you can use to request a quote for MAX3738ETG+T from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay