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MAX3735, MAX3735A
2.7Gbps, Low-Power SFP Laser Drivers
Multirate 3.3V Laser Driver for SFP Modules Meets All Requirements for SFF-8472 Digital Diagnostics
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Status
| Part Number |
Status |
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MAX3735
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This product is No Longer Available. |
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MAX3735A
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Active: In Production. See Ordering Information for details. |
Description
The MAX3735/MAX3735A are +3.3V laser drivers for SFP/SFF applications from 155Mbps up to 2.7Gbps. The devices accept differential input data and provide bias and modulation currents for driving a laser. DC-coupling to the laser allows for multirate applications and reduces the number of external components. The MAX3735/MAX3735A are fully compliant with the SFP MSA timing and the SFF-8472 transmit diagnostic requirements.
An automatic power-control (APC) feedback loop is incorporated to maintain a constant average optical power over temperature and lifetime. The wide modulation current range of 10mA to 60mA (up to 85mA AC-coupled) and bias current of 1mA to 100mA make this product ideal for driving FP/DFB laser diodes in fiber-optic modules. The resistor range for the laser current settings is optimized to interface with the DS1858 SFP controller IC.
The MAX3735/MAX3735A provide transmit-disable control, a single-point latched transmit-failure monitor output, photocurrent monitoring, and bias-current monitoring to indicate when the APC loop is unable to maintain the average optical power. The MAX3735A also features improved multirate operation.
The MAX3735/MAX3735A come in package and die form, and operate over the extended temperature range of -40°C to +85°C.
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Data Sheet
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An evaluation kit is available: MAX3735AEVKIT
Key Features
- SFP Reference Design Available
- Fully Compliant with SFP and SFF-8472 MSAs
- Programmable Modulation Current from 10mA to 60mA (DC-Coupled)
- Programmable Modulation Current from 10mA to 85mA (AC-Coupled)
- Programmable Bias Current from 1mA to 100mA
- Edge Transition Times <51ps
- 27mA (typ) Power-Supply Current
- Multirate 155Mbps to 2.7Gbps Operation
- Automatic Average Power Control
- On-Chip Pullup Resistor for TX_Disable
- 24-Pin 4mm x 4mm QFN package
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Applications/Uses
- 1G/2G Fibre Channel SFF/SFP Optical Transceiver Modules
- Gigabit Ethernet SFF/SFP Transceiver Modules
- Modules
- Multirate OC-3 to OC-48 FEC SFF/SFP Transceiver Modules
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Key Specifications:
| Laser Drivers |
| Part Number |
Target Oper. Range
(Gbps) |
Data Rate
(Mbps) |
Data Rate
(Mbps) |
VSUPPLY
(V) |
ICC
(mA) |
I/O Type |
IMOD
(mA) |
IBIAS
(mA) |
EV Kit |
Package/Pins |
Budgetary Price |
| min |
max |
typ |
max |
max |
See Notes |
| MAX3735 |
1 to 4.5 |
155 |
2700 |
3.3 |
27 |
CML |
60 |
100 |
Yes |
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$1.24 @1k |
| MAX3735A |
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$1.24 @1k |
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See All Laser Drivers (24)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Application Circuit
Application Notes
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX3735AE/D
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N/A |
No Longer Available |
DICE SALES;NA pin;DICE;
Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
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See data sheet
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| MAX3735AEGG
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Active |
QFN;24 pin;16 mm²
Outline Drawing:21-0106 (PDF)
Land Pattern: 90-0219 (PDF)
Use pkgcode/variation: G2444-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX3735AEGG-T
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Active |
QFN;24 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX3735AETG
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Active |
TQFN;24 pin;16.8 mm²
Outline Drawing:21-0139 (PDF)
Land Pattern: 90-0021 (PDF)
Use pkgcode/variation: T2444-3*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX3735AETG+
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Active |
TQFN;24 pin;16.8 mm²
Outline Drawing:21-0139 (PDF)
Land Pattern: 90-0021 (PDF)
Use pkgcode/variation: T2444+3*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3735AETG+T
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Active |
TQFN;24 pin;16.8 mm²
Outline Drawing:21-0139 (PDF)
Land Pattern: 90-0021 (PDF)
Use pkgcode/variation: T2444+3*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3735AETG-T
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Active |
QFN;24 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX3735E/D
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N/A |
No Longer Available |
DICE SALES;NA pin;DICE;
Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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| MAX3273 |
+3.3V, 2.5Gbps Low-Power Laser Driver |
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More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2529
Rev 2;
2004-08-24
This page last modified: 2009-10-14
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