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MAX2654, MAX2655, MAX2656

1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers

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Active: In Production.

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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 480kB)
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An evaluation kit is available: MAX2654EVKIT, MAX2655EVKIT, MAX2656EVKIT

Key Features

  • 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
 

Applications/Uses

  • 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 Budgetary 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
$0.72 @1k
MAX2655  1400 1700 1.45 14.1 3.8 5.9 to 10.1 Automotive - General
SC70/6
$0.72 @1k
MAX2656  1800 2000 0.8 13.5 7.2 12.3 -
SC70/6
$0.72 @1k
See All Low-Noise Amplifiers (33)
Pricing 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

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

More Information

Topmark Coding MAX2654
Topmark Coding MAX2655
Topmark Coding MAX2656
New Product Press Release 2001-02-26 ]

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Information Index

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




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