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Maxim > Products > [Wireless and RF] 
MAX2371, MAX2373
LNAs with Step Attenuator and VGA


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 152kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX2371/MAX2373 wideband low-noise amplifier (LNA) ICs are designed for direct conversion receiver (DCR) or very low intermediate frequency (VLIF) receiver applications. They contain single-channel, single-ended LNAs with switchable attenuator and automatic gain control (AGC) intended as a low-noise gain stage. These devices provide high gain-control range (typically 60dB) at radio frequency (RF) with excellent noise and reverse isolation characteristics.

The MAX2371/MAX2373 can work over the frequency range from 100MHz to 1GHz. In practice, only a narrow band is needed in each application, so different matching circuits can be applied. The devices are dynamically configured through the digital/analog control pins to select either maximum gain and low noise figure or power-saving mode. In addition, the MAX2371/MAX2373 feature high/low-current modes, high/low attenuation modes, linearly controlled gain states, and shutdown mode.

An evaluation kit is available:  MAX2371EVKIT, MAX2373EVKIT  

Key Features   Applications/Uses
  		• Low Noise Figure (1.8dB typical)
  		• High Small-Signal Gain (15dB Nominal)
  		• Wide Frequency Range of Operation (100MHz to 1GHz)
  		• 20dB Step Attenuator
  		• 45dB AGC Range Excluding Step Attenuator
  		• 2.65V to 3.3V Single-Supply Operation
  		• Shutdown Mode
  		• 3.5mA Supply Current, Adjustable Down to 2.5mA
  		• 40dB Reverse Isolation

    		  
  		• Direct Conversion Receiver (DCR)
  		• Very Low IF Receiver

    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)    		 Package/Pins Price
    min max See Notes
    MAX2371  100 1000 1.8 15 -4 2.5 to 3.5 3.0 x 3.0
    QFN/12
    TQFN/12
    		 $1.32 @1k
    MAX2373  -9
    QFN/12
    TQFN/12
    		 -
    See All Low-Noise Amplifiers (20)

    Diagram
    MAX2371, MAX2373: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 2243: MAX2371 Makes a Terrific IF AGC Amplifier at 220MHz - MAX2371

    Evaluation Kits
  		• MAX2371EVKIT, MAX2373EVKIT

    Design Guides
  		• Wireless (PDF)

    Reliability Reports
  		• Reliability Report: MAX2371.pdf MAX2373.pdf
  		• Show FIT data for:

    Software/Models
  		• MAX2371 S-Parameter File
  		• MAX2373 S-Parameter File

    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: 1-13 of 13

    MAX2371 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2371EGC  
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2371EGC-T    
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2371EGC+  
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2371EGC+T    
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2371ETC+  
    		Active TQFN;12 pin;10 mm²
    Outline Drawing: 21-0136 (PDF)
    Land Pattern: 90-0018 (PDF)
    Use pkgcode/variation: T1233+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2371ETC+T    
    		Active TQFN;12 pin;10 mm²
    Outline Drawing: 21-0136 (PDF)
    Land Pattern: 90-0018 (PDF)
    Use pkgcode/variation: T1233+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2373 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX2373E/D-B0A    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX2373EGC  
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2373EGC-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX2373EGC+  
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2373EGC+T    
    		Active QFN;12 pin;10 mm²
    Outline Drawing: 21-0102 (PDF)
    Land Pattern: 90-0213 (PDF)
    Use pkgcode/variation: G1233+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX2373ETC  
    		Active TQFN;12 pin;10 mm²
    Outline Drawing: 21-0136 (PDF)
    Land Pattern: 90-0018 (PDF)
    Use pkgcode/variation: T1233-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX2373ETC-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

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    Document Ref.: 19-2301; Rev 1; 2006-10-25
    This page last modified: 2007-07-05


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