SiGe, Variable IIP3, Low-Noise Amplifier in UCSP Package

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The MAX2374 silicon-germanium (SiGe), switchable-gain, variable-linearity, low-noise amplifier (LNA) is designed for cellular-band, code-division multiple-access (CDMA). It can be used for applications such as TDMA and PDC or wherever high dynamic range and low noise are required. This LNA provides a high intermodulation intercept point (IIP3), which is adjustable to meet specific system requirements by selecting an appropriate external resistor. To achieve high gain and low noise, the LNA is packaged in a tiny ultra-chip-scale package (UCSP™) with six solder bumps. The LNA operates from a +2.7V to +5.5V single supply and consumes just 8.5mA while achieving a +6.2dBm input IIP3. Supply current reduces to less than 1µA in shutdown mode.

The MAX2374 provides two gain modes. High-gain mode optimizes system sensitivity, while low-gain mode optimizes system linearity.
MAX2374: Typical Application Circuit MAX2374: Typical Application Circuit Enlarge+

Key Features

  • +2.7V to +5.5V Single Supply
  • Low Operating Current
    • 8.5mA for High Linearity
    • 4.5mA for Paging
    • 4.1mA in Low-Gain, High-Linearity Mode
  • Low Noise Figure: 1.5dB Cellular
  • Adjustable IIP3
  • Two Gain Settings
  • < 1µA Shutdown Mode
  • Ultra-Small 6-Bump UCSP (1mm x 1.5mm)


  • CDMA Phones
  • GSM Handsets
  • Land Mobile Radios
  • TDMA Phones
  • Wireless Data
  • Wireless Local Loop (WLL)

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
Request Reliability Report for: MAX2374 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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