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MAX2055
Digitally Controlled, Variable-Gain, Differential ADC Driver/Amplifier

Industry's First Low-Distortion, IF Differential ADC Driver with Digitally Selectable Gain


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 636kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX2055 high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA) is designed for use from 30MHz to 300MHz in base-station receivers.

The device integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier, which can either eliminate an external transformer, or can improve the even-order distortion performance of a transformer-coupled circuit, thus relaxing the requirements of the anti-alias filter preceding an ADC. Targeted for ADC driver applications to adjust gain either dynamically or as a one-time channel gain setting, the MAX2055 is ideal for applications requiring high performance. The attenuator provides 23dB of attenuation range with ±0.2dB accuracy.

The MAX2055 is available in a thermally enhanced 20-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range.

An evaluation kit is available:  MAX2055EVKIT  

Key Features   Applications/Uses
  • 30MHz to 300MHz Frequency Range
  • Single-Ended-to-Differential Conversion
  • -3dB to +20dB Variable Gain
  • 40dBm Output IP3 (at All Gain States and 70MHz)
  • 2nd Harmonic -76dBc
  • 3rd Harmonic -69dBc
  • Noise Figure: 5.8dB at Maximum Gain
  • Digitally Controlled Gain with 1dB Resolution and ±0.2dB Accuracy
  • Adjustable Bias Current

 
  • Automated Test Equipment (ATE)
  • Broadband Systems
  • Cell Phone Base Stations
  • High-Performance ADC Drivers
  • PHS/PAS Infrastructure
  • Receiver Gain Control
  • Terrestrial Links

    Key Specifications:  RF and IF Variable Gain Amplifiers
    Part Number Gain
    (dB)
    Freq.
    (MHz)
    Freq.
    (MHz)
    Noise Figure
    (dB)
    Input IP3
    (dBm)
    ISUPPLY
    (mA)
    Footprint
    (mm x mm)
    Package/Pins Price
    min max See Notes
    MAX2055  -3 to +20 30 300 5.8 40 240 6.4 x 6.5
    TSSOP-EP/20
    $4.95 @1k
    See All RF and IF Variable Gain Amplifiers (9)

    Diagram
    MAX2055: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  • Application Note 3062: Dynamic Performance Requirements for High-Performance ADCs and RF Components in Digital Receiver Applications - MAX2055
  • Application Note 3942: Optimize the Buffer Amplifier/ADC Connection - MAX2055

    Evaluation Kits
  • MAX2055EVKIT

    Design Guides
  • Wireless (PDF)

    Reliability Reports
  • Reliability Report: MAX2055.pdf

    Software/Models
    none

    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: 1-4 of 4

    MAX2055 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2055EUP+D    
    Active TSSOP-EP;20 pin;43 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0114 (PDF)
    Use pkgcode/variation: U20E+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2055EUP+TD    
    Active TSSOP-EP;20 pin;43 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0114 (PDF)
    Use pkgcode/variation: U20E+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2055EUP-D    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX2055EUP-TD    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet

    More Information
  • New Product Press Release 2003-06-24 

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  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
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    Document Ref.: 19-2799; Rev 0; 2003-05-19
    This page last modified: 2009-10-13


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