LNA/Driver with Bypass: 0.1 to 3.8 GHz

GRF4142 is a low noise amplifier (LNA) with low loss bypass which requires only a single control input. It is designed for high performance applications up to 3.8 GHz.

With minimal external matching, the device achieves outstanding noise figure (NF), high gain and high linearity. The LNA is operated from a single positive supply of 1.8 to 5.0 V with a selectable Iddq range of 15 to 80 mA.

Consult with the GRF applications engineering team for application notes and custom tuning/evaluation board data.


  • Cellular Repeaters and Signal Boosters
  • Cellular Infrastructure
  • WLAN, ZigBee®/Bluetooth®
  • VHF/UHF and ISM Radios
  • Low Voltage Radio Architectures


Reference: 3.3V/50mA/1.9 GHz

  • Gain: 16.0 dB
  • EVB NF: 0.95 dB
  • OP1dB: 19.0 dBm
  • OIP3: 34.0 dBm
  • Bypass Mode Gain: -1.3 dB
  • Flexible Bias Voltage and Current
  • Single Control Logic Input
  • Pre-matched to 50 Ω
  • Process: GaAs pHEMT

Manufacturing Information


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