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Maxim > Products > [Wireless and RF]  [Automotive] 
MAX2654, MAX2655, MAX2656
1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 480kB)
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Description
The MAX2654/MAX2655/MAX2656 high third-order intercept point (IP3), low-noise amplifiers (LNAs) are designed for applications in GPS, PCS, WLL, and satellite phone systems. The MAX2654/MAX2655/MAX2656 incorporate on-chip internal output matching to 50Ω, eliminating the need for external matching components. A shutdown feature in the MAX2654/MAX2655 reduces the operating current to 0.1µA, eliminating the need for an external supply switch.

The MAX2654 operates in the GPS frequency of 1575MHz with 15.1dB of gain, 1.5dB noise figure, and only consumes 5.8mA. The MAX2655 is designed with high-input IP3 to improve operation in cellular applications where the cellular power amplifier leaks into the GPS receiver. The MAX2656 is designed for PCS phone applications with 13.5dB of gain in high-gain mode and 0.8dB of gain in low-gain mode (selected by a logic control) and 1.9dB noise figure.

The IP3 of MAX2655/MAX2656 is adjustable by a single external bias resistor (RBIAS), allowing supply current to be optimized for a specific application.

The MAX2654/MAX2655/MAX2656 operate from a +2.7V to +5.5V single supply and are available in the miniature 6-pin SC70 package.

An evaluation kit is available:  MAX2654EVKIT, MAX2655EVKIT, MAX2656EVKIT  

Key Features   Applications/Uses
  • Low Noise Figure
    • MAX2654: 1.5dB at 1575MHz
    • MAX2655: 1.45dB at 1575MHz
    • MAX2656: 1.9dB at 1960MHz
  • High Gain
    • MAX2654: 15.1dB at 1575MHz
    • MAX2655: 14.1dB at 1575MHz
    • MAX2656: 13.5dB at 1960MHz
  • 12.7dB Gain Step (MAX2656 only)
  • Integrated 50Ω Output Matching
  • Variable IP3 Set by One Bias Resistor (MAX2655/MAX2656 only)
  • 0.1µA Shutdown Mode (MAX2654/MAX2655 only)
  • +2.7V to +5.5V Single-Supply Operation
  • Ultra-Small 6-Pin SC70 Package

 
  		• DCS/PCS Cellular Phones
  		• GPS Receivers in Cellular Phones
  		• Satellite Phones
  		• Wireless Local Loop (WLL)

    Key Specifications:  Low-Noise Amplifiers
    Part Number RF Freq.
    (MHz)    		 RF Freq.
    (MHz)    		 Noise Figure
    (dB)    		 Gain
    (dB)    		 Input IP3
    (dBm)    		 ISUPPLY
    (mA)    		 Footprint
    (mm x mm)    		 Industry Qualified Package/Pins Price
    min max See Notes
    MAX2654  1400 1700 1.5 15.1 -7.2 5.8 2.0 x 2.1 Automotive - General
    SC70/6
    		 $0.89 @1k
    MAX2655  1400 1700 1.45 14.1 3.8 5.9 to 10.1 Automotive - General
    SC70/6
    		 $0.89 @1k
    MAX2656  1800 2000 0.8 13.5 7.2 12.3 -
    SC70/6
    		 $0.89 @1k
    See All Low-Noise Amplifiers (20)

    Diagram
    MAX2654, MAX2655, MAX2656: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 602: RF IC Building Block Solutions for GPS - MAX2654, MAX2655
  		• Application Note 697: Silicon Germanium (SiGe) Technology Enhances Radio Front-End Performance - MAX2654
  		• Application Note 1749: MAX2655 GPS LNA Stability Measurements - MAX2655
  		• Application Note 2875: Three Methods of Noise Figure Measurement - MAX2654, MAX2655, MAX2656
  		• Application Note 3169: Low-Noise Amplifier (LNA) Matching Techniques for Optimizing Noise Figures - MAX2655, MAX2656
  		• Application Note 3447: Complete Stand-Alone GPS Receiver Solution with MAX2742 - MAX2654, MAX2655

    Evaluation Kits
  		• MAX2654EVKIT, MAX2655EVKIT, MAX2656EVKIT

    Design Guides
  		• Wireless (PDF)

    Reliability Reports
  		• Reliability Report: MAX2654.pdf
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
  		• MAX2654–MAX2656 S-Parameter File (DOC)
  		• MAX2654–MAX2656 S-Parameter File (DOC)

    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: 1-9 of 9

    MAX2654 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2654EXT+  
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2654EXT-T    
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2654EXT+T    
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2655 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2655EXT+  
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2655EXT-T    
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2655EXT+T    
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2656 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2656EXT+  
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2656EXT-T    
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2656EXT+T    
    		Active SC70;6 pin;5 mm²
    Outline Drawing: 21-0077 (PDF)
    Land Pattern: 90-0189 (PDF)
    Use pkgcode/variation: X6SN+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX2654 MAX2655 MAX2656
  		• New Product Press Release 2001-02-26 

    Related Products
    MAX2640, MAX2641 300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers

    More Like This: View Product Families for Similar Products

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    Document Ref.: 19-1872; Rev 1; 2002-08-30
    This page last modified: 2009-09-18


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