Features and Benefits

  • 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
  • Product Details

    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.


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

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.