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MAX2642, MAX2643
900MHz SiGe, High-Variable IP3, Low-Noise Amplifier

Industry's Smallest SiGe LNA Offers Adjustable IP3 and Gain-Step Functions


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Data Sheet
FULL DATA SHEET (PDF, 248kB)
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Description
The MAX2642/MAX2643 low-cost, high third-order intercept point (IP3), low-noise amplifiers (LNAs) are designed for applications in cellular, ISM, SMR, and PMR systems. They feature a programmable bias, allowing the IP3 and supply current to be optimized for specific applications. These LNAs provide up to 0dBm input IP3 while maintaining a low noise figure of 1.3dB.

The gain for these devices is typically 17dB. The MAX2642 also features a 13dB attenuation step, which extends the LNA's dynamic range. Both devices feature a shutdown mode that minimizes power consumption. On-chip output matching saves board space by reducing the number of external components.

The MAX2642/MAX2643 are designed on a low-noise, advanced silicon-germanium (SiGe) process technology. They operate from a +2.7V to +5.5V single supply and are available in the ultra-small 6-pin SC70 package.

Key Features   Applications/Uses
  • Wide Frequency Range: 800MHz to 1000MHz
  • High Output IP3 and Adjustable
    • +17dBm at 5.3mA
    • +7dBm at 2.8mA
  • Low Noise Figure: 1.3dB at 900MHz
  • 13dB Attenuation Step (MAX2642)
  • On-Chip Output Matching
  • Low-Power Shutdown Mode
  • +2.7V to +5.5V Single-Supply Operation
  • Ultra-Small SC70-6 Package

 
  • 800MHz/900MHz Cellular Phones
  • 868MHz/900MHz ISM-Band Wireless Data
  • 900MHz Cordless Phones
  • PMR/SMR/LMR

    Key Specifications:   Low-Noise Amplifiers
    Part Number Solutions Applications Frequency Range (MHz) Noise Figure (dB) Gain (dB) Input IP3 (dBm) Supply Current (mA) Footprint (mm x mm) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX2642  900MHz
    Cellular
    Cordless
    Cellular
    Cordless
    ISM
    800 to 1000 1.35 16.7  -  5.3 2.0 x 2.1 Yes SC-70/6 5 $0.89 @ 1k
    MAX2643  0 2.8 to 5.3 $0.89 @ 1k
    See All Low-Noise Amplifiers (18)
    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
    MAX2642, MAX2643: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 697: Silicon Germanium (SiGe) Technology Enhances Radio Front-End Performance - MAX2642
  • Application Note 742: Impedance Matching and the Smith Chart: The Fundamentals - MAX2642
  • Application Note 2875: Three Methods of Noise Figure Measurement - MAX2642, MAX2643

    Evaluation Kits
  • MAX2642EVKIT, MAX2643EVKIT

    Design Guides
  • WIRELESS (PDF)

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

    Software/Models
  • MAX2642-2643 S-Parameter File (DOC)
  • MAX2642-2643 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: 1-8 of 8

    MAX2642 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2642EXT+  
    SC-70;6 pin;5 mm²
    Dwg: 21-0077G (PDF)
    Use pkgcode/variation: X6SN+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2642EXT  
    SC-70;6 pin;5 mm²

    Use pkgcode/variation: X6SN-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2642EXT-T  
    SC-70;6 pin;5 mm²

    Use pkgcode/variation: X6SN-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2642EXT+T  
    SC-70;6 pin;5 mm²
    Dwg: 21-0077G (PDF)
    Use pkgcode/variation: X6SN+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2643 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2643EXT+T  
    SC-70;6 pin;5 mm²
    Dwg: 21-0077G (PDF)
    Use pkgcode/variation: X6SN+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2643EXT+  
    SC-70;6 pin;5 mm²
    Dwg: 21-0077G (PDF)
    Use pkgcode/variation: X6SN+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2643EXT  
    SC-70;6 pin;5 mm²

    Use pkgcode/variation: X6SN-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2643EXT-T  
    SC-70;6 pin;5 mm²

    Use pkgcode/variation: X6SN-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    More Information
  • Topmark Coding: MAX2642 MAX2643
  • New Product Press Release 2000-05-17 

    Related Products
    MAX2685 Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer
    MAX2640, MAX2641 300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers

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     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
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     Design Guides 
     Engineering Journals 
     Reliability Reports 
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    Document Ref.: 19-1682; Rev 0; 2000-06-02
    This page last modified: 2007-07-23




             


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