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MAX3274

Dual-Rate Fibre Channel Limiting Amplifier

1.0625Gbps/2.215Gbps Fibre Channel Limiting Amplifier with On-Chip, Fourth-Order Filter

Overview

Technical Documents

Ordering Info

Status

Not Recommended for New Designs

Description

The MAX3274 dual-rate Fibre Channel limiting amplifier is optimized for use in dual-rate 2.125Gbps/1.0625Gbps Fibre Channel optical receiver systems. An on-chip selectable fourth-order Bessel Thompson filter offers 15dB (typ) of attenuation at 2GHz to suppress the relaxation oscillation (RO) found in legacy transmitters. The amplifier accepts a wide range of input voltages and provides constant-level output voltages with controlled edge speeds. Receivers using the MAX3275/MAX3277 transimpedance amplifiers (TIA) and the MAX3274 dual-rate limiting amplifier can meet the Fibre Channel receiver sensitivity optical modulation amplitude (OMA) specification of 49mW_P-P at 2.125Gbps and 31mW_P-P at 1.0625Gbps. Additional features include a programmable threshold loss-of-signal (LOS) detector, output squelch, and bandwidth select. The MAX3274 features current-mode logic (CML) data outputs. The MAX3274 is available in a 16-pin QFN package, making it ideal for GBIC and small form-factor receiver modules.

Data Sheet

Download	Rev 1	(PDF, 488kB)
E-Mail

An evaluation kit is available: MAX3274EVKIT

Key Features

Dual-Rate 1.0625Gbps/2.125Gbps Operation
On-Chip Selectable 4th-Order Filter
Relaxation Oscillation Suppression of Legacy, CD Laser-Based Transmitters
Available in a 100Ω Output Termination
Programmable Loss-of-Signal (LOS) Threshold
Output Squelch Control
Power-On Reset Minimizes Inrush Current
4mm x 4mm 16-Pin QFN Package

Applications/Uses

Dual-Rate Fibre Channel SFF/SFP Optical Modules
Fibre Channel GBIC Optical Modules

Key Specifications:

Limiting Amplifiers

Part Number

Target Oper. Range
(Gbps)

Data Rate
(Mbps)

V_SUPPLY
(V)

I_CC
(mA)

I/O Type

Input Sens.
(mV)

LOS Sens.
(mV)

Edge Speed
(ps)

EV Kit

Package/Pins

min

max

typ

min

max

MAX3274

1 to 4.5

1062

2125

3.3

CML

220

Yes

See Data Sheet

See All Limiting Amplifiers (16)

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.

Diagram

Typical Operating Circuit

More Information

New Product Press Release

[ 2002-05-09 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-2375 Rev 1; 2003-08-29
This page last modified: 2009-10-14