Maxim > Products > Optoelectronics > MAX3645

MAX3645

+2.97V to +5.5V, 125Mbps to 200Mbps Limiting Amplifier with Loss-of-Signal Detector

3V to 5.5V, 200Mbps Limiting Amplifier with LOS Detector

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX3645 limiting amplifier functions as a data quantizer and is pin compatible with the Mindspeed MC2045-2 and MC2045-2Y postamplifiers. The amplifier accepts a wide range of input voltages and provides constant-level positive emitter-coupled logic (PECL) output voltages with controlled edge speeds.

The MAX3645 features an integrated power detector with complementary PECL loss-of-signal (LOS) outputs that indicate when the input power level drops below a programmable threshold. An optional squelch function holds the data outputs at static levels during a LOS condition.

The MAX3645 operates from a single +3.3V or +5.0V power supply over a -40°C to +85°C temperature range. It is available in 16-pin SO and 16-pin QSOP packages.

Data Sheet

Download	Rev 1	(PDF, 240kB)
E-Mail

An evaluation kit is available: MAX3645EVKIT

Key Features

Pin Compatible with the Mindspeed MC2045-2/MC2045-2Y
500µV Input Sensitivity (BER = 10^-12)
Compatible with 4B/5B Data Coding
Programmable LOS Threshold
Stable LOS Threshold Over Supply Range
Output Disable Function and Automatic Squelch
Single +3.3V or +5.0V Power Supply
18mA Supply Current

Applications/Uses

ESCON Receivers
Fast Ethernet Receivers
FDDI 125Mbps Receivers
FTTx Receivers
SONET 155Mbps Transceivers

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

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

typ

min

max

max w/pins

See Notes

MAX3645

155

200

3.3

PECL

1400

Yes

QSOP/16

SOIC(N)/16

61.9

$1.85 @1k

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

Application Notes

Application Note 2931		HFTA-09.0: T3/E3/STS-1 Fiber Optic Extension
Application Note 2946		MAX3645: Using the MAX3645 as a Pin-for-Pin Replacement of the Mindspeed MC2045-2/2Y

Product Guides

Communications (PDF)

Reliability Reports

Reliability Report:	MAX3645.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3645EEE			Active	QSOP;16 pin;30.9 mm² Outline Drawing:21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3645EEE+			Active	QSOP;16 pin;30.9 mm² Outline Drawing:21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3645EEE+T			Active	QSOP;16 pin;30.9 mm² Outline Drawing:21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3645EEE-T			Active	QSOP;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX3645ESE			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3645ESE+			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3645ESE+T			Active	SOIC(N);16 pin;61.9 mm² Outline Drawing:21-0041 (PDF) Land Pattern: 90-0097 (PDF) Use pkgcode/variation: S16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3645ESE-T			Active	N.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet

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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Evaluation Kits

MAX3645EVKIT

Evaluation Kit for the MAX3645

More Information

New Product Press Release

[ 2003-11-06 ]

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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.: 19-3026 Rev 1; 2004-12-14
This page last modified: 2007-08-21