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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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Data Sheet
FULL DATA SHEET (PDF, 636kB)
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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.

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 Solutions Applications Gain (dB) Min. Frequency (MHz) Max. Frequency (MHz) Noise Figure (dB) Input IP3 (dBm) Supply Current (mA) Variable Gain Amp Footprint (mm x mm) RoHS Available Package Price**
    MAX2055  2.4GHz
    400MHz
    5GHz
    900MHz
    Cellular
    WLL
    Automated Test Equipment
    Cellular
    ISM
    PHS/PAS
    Satellite
    UMTS
    WLL
    -3 to +20 30 300 5.8 40 240 Yes 6.4 x 6.5 Yes TSSOP/20 $4.95 @ 1k
    See All RF and IF Variable Gain Amplifiers (6)
    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 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
  • A/D CONVERTERS (PDF)
  • WIRELESS (PDF)

    Reliability Reports
  • Reliability Report: MAX2055EUP.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
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2055EUP+D  
    TSSOP;20 pin;
    Dwg: 21-0108G (PDF)
    Use pkgcode/variation: U20E+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2055EUP+TD  
    TSSOP;20 pin;
    Dwg: 21-0108G (PDF)
    Use pkgcode/variation: U20E+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2055EUP-D  
    TSSOP;20 pin;
    Dwg: 21-0108G (PDF)
    Use pkgcode/variation: U20E-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2055EUP-TD  
    TSSOP;20 pin;
    Dwg: 21-0108G (PDF)
    Use pkgcode/variation: U20E-1*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

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

    Related Products
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    MAX2027 IF Digitally Controlled Variable-Gain Amplifier
    MAX9993 High-Linearity 1700MHz to 2200MHz Down-Conversion Mixer with LO Buffer/Switch

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     Description 
     Key Features 
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     Data Sheet 
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    Document Ref.: 19-2799; Rev 0; 2003-05-19
    This page last modified: 2008-05-19



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