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Maxim > Products > [Optoelectronics] 
MAX3264, MAX3265, MAX3268, MAX3269, MAX3765, MAX3768
+3.0V to +5.5V, 1.25Gbps/2.5Gbps Limiting Amplifiers

Limiting Amplifier with Squelch Function Generates Low Deterministic Jitter

Recommended Upgrades for New Designs
Part Number Replacement Explanation
MAX3264C/D n/a This part remains available but is not recommended for new designs.
MAX3264CUE n/a
MAX3264CUE+ n/a
MAX3265 MAX3272A Improved Performance and Features
MAX3265C/D MAX3272A
MAX3265CUB MAX3272A
MAX3265CUB+ MAX3272A
MAX3265CUE MAX3272A
MAX3265CUE+ MAX3272A
MAX3265EUE MAX3272A
MAX3265EUE+ MAX3272A
MAX3765CUB n/a This part remains available but is not recommended for new designs.
MAX3765CUB+ n/a


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Data Sheet
FULL DATA SHEET (PDF, 992kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The 1.25Gbps MAX3264/MAX3268/MAX3768 and the 2.5Gbps MAX3265/MAX3269/MAX3765 limiting amplifiers are designed for Gigabit Ethernet and Fibre Channel optical receiver systems. The amplifiers accept a wide range of input voltages and provide constant-level output voltages with controlled edge speeds. Additional features include RMS power detectors with programmable loss-of-signal (LOS) indication, an optional squelch function that mutes the data output signal when the input voltage falls below a programmable threshold, and excellent jitter performance.

The MAX3264/MAX3265/MAX3765 feature current-mode logic (CML) data outputs that are tolerant of inductive connectors and a 16-pin TSSOP package, making these circuits ideal for GBIC receivers. The MAX3268/ MAX3269/MAX3768 feature standards-compliant positive-referenced emitter-coupled logic (PECL) data outputs and are available in a tiny 10-pin µMAX® package that is ideal for small-form-factor (SFF) receivers.

Key Features   Applications/Uses
  • +3.0V to +5.5V Supply Voltage
  • Low Deterministic Jitter
    14ps (MAX3264)
    11ps (MAX3265/MAX3765)
  • 150ps (max) Edge Speed (MAX3265/MAX3765)
    300ps (max) Edge Speed (MAX3264)
  • Programmable Signal-Detect Function
  • Choice of CML or PECL Output Interface
  • 10-Pin µMAX or 16-Pin TSSOP Package

 
  		• ATM Optical Receivers
  		• Fibre Channel Optical Receivers
  		• Gigabit Ethernet Optical Receivers
  		• System Interconnect

    Key Specifications:   Limiting Amplifiers
    Part Number Target Operating Range (Gbps) Min. Data Rate (Mbps) Max. Data Rate (Mbps) Supply Voltage (V) Typ. Supply Current (mA) I/O Type Input Sens. (mV) Min. LOS Sens. (mV) Max. Edge Speed (ps) EV-Kit Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX3268  1 to 4.5 1062 1250 3.3
    5     		62 PECL 5 1.2 300 Yes µMAX-EP/10 26 $4.00 @ 1k
    MAX3269  2125 2500 76 10 2.2 150 Yes $4.40 @ 1k
    MAX3768  1062 1250 39 5 1.2 300  -  $2.27 @ 1k
    See All Limiting Amplifiers (17)
    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.

    Application Notes
  		• Application Note 281: MAX3265: Interfacing the MAX3265 to the MAX3875 - MAX3265
  		• Application Note 468: MAX3265: Using MAX3265 LOS in GBICs - MAX3264, MAX3265, MAX3268, MAX3269
  		• Application Note 1102: HFAN-09.0.3: APON Class A, B, & C Physical Layer Requirements - MAX3765
  		• Application Note 1788: HFAN-06.2: IBIS Data for CML, PECL, and LVDS Interface Circuits - MAX3265

    Evaluation Kits
  		• MAX3264EVKIT, MAX3265EVKIT, MAX3268EVKIT, MAX3269EVKIT

    Design Guides
  		• Fiber (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• MAX3264CUE IBIS Model
  		• MAX3264C_D IBIS Model
  		• MAX3265CUB IBIS Model
  		• MAX3265CUE IBIS Model
  		• MAX3265CUE SPICE Input/Output Model
  		• MAX3268CD IBIS Model
  		• MAX3268CUB SPICE Input/Output Model
  		• MAX3269CD IBIS Model
  		• MAX3269CUB IBIS Model
  		• MAX3269CUB SPICE Input/Output Model
  		• MAX3765CUB IBIS Model

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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.


    Devices: 1-37 of 37

    MAX3264 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3264C/D  


    Land Pattern: Not Available

    		See data sheet
    MAX3264CUE  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3264CUE-T  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3264CUE+  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3264CUE+T  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3265CUE  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3265CUE-T  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3265CUE+  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265CUE+T  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265EUE  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3265EUE-T  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3265EUE+  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265EUE+T  
    		TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265CUB  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3265CUB-T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3265CUB+  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265CUB+T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3265C/D  


    Land Pattern: Not Available

    		See data sheet
    MAX3268 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3268CUB  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3268CUB-T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3268CUB+  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3268CUB+T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3268C/D  


    Land Pattern: Not Available

    		See data sheet
    MAX3269 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3269C/D  


    Land Pattern: Not Available

    		See data sheet
    MAX3269CUB  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3269CUB-T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3269CUB+  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3269CUB+T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3765 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3765CUB  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3765CUB-T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3765CUB+  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3765CUB+T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3768 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3768C/D  


    Land Pattern: Not Available

    		See data sheet
    MAX3768CUB  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3768CUB-T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3768CUB+  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3768CUB+T  
    		µMAX-EP;10 pin;26 mm²
    Outline Drawing: 21-0109 (PDF)
    Land Pattern: 90-0148 (PDF)
    Use pkgcode/variation: U10E+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX3265 MAX3268 MAX3269 MAX3765 MAX3768
  		• New Product Press Release 2000-01-21 

    Related Products
    MAX3996 +3.0V to +5.5V, 2.5Gbps VCSEL and Laser Driver
    MAX3275, MAX3277 Low-Noise, Fibre Channel Transimpedance Amplifiers

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    Document Ref.: 19-1523; Rev 7; 2006-03-03
    This page last modified: 2007-06-04


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