CMX90A004 2W 860 –960 MHz Power Amplifier


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The CMX90A004 is a two-stage, fully matched MMIC PA delivering +32.5dBm of saturated power for use in the 860 – 960 MHz frequency range, applicable to license-free bands.

The device is optimised for maximum efficiency at collector voltages of 2.7–4.5V, making it suitable for systems operating from a single-cell Li-Ion battery.

CMX90A004 is highly integrated for ease of use, minimising external component count and reducing board area. RF input and output matching is incorporated on-chip, as well as active bias circuitry and an input DC-blocking capacitor.

Using advanced GaAs HBT technology to provide a combination of high efficiency and gain, the CMX90A004 is intended as a high-power final stage ISM band PA in wireless applications.


  •  Frequency range 860 – 960 MHz 
  • Supply voltage – 2.7 – 4.5 V 
  • Output power 32.5 dBm @ 3.6 V 
  • Input and output matched to 50 Ω 
  • Small signal gain 30 dB 
  • High PAE of 49% 
  • Shut-down and output power control 


  • Automatic meter readers (AMR) 
  • Smart meters 
  • Wireless modules 
  • UHF RFID readers 
  • Final stage PA 
  • Internet of Things (IoT) 
  • 868 / 915 MHz ISM 
  • Li-Ion battery powered systems 
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