RFMW Expert Product Pick: CML Microcircuits CMX90A702

CML Microcircuits’ CMX90A702 is a highly linear medium power amplifier operating in Frequency Range 2 (FR2) from 26.5 to 29.5 GHz that addresses the needs of 5G New Radio (NR) band n257 and n261. The CMX90A702 is a three-stage GaAs MMIC amplifier delivering +25 dBm (0.3 W) of output power at 1 dB gain compression, 21 dB of small signal gain and +32.5 dBm output third order intercept (OIP3). RF ports are matched to 50 Ω with an integrated DC blocking capacitor at the output.

The MPA is easy to monitor with an on-chip temperature-compensated RF power detector and fast-switching enabled circuit.

Additionally, the CMX90A702 uses an enhancement mode (E-mode) pHEMT process to ensure only positive supply voltages are required and makes single DC supply operation possible.


  • Frequency range 26.5 – 29.5 GHz
  • Small signal gain 21 dB
  • Output P1dB +25 dBm (0.3 W)
  • Power added efficiency 26 %
  • EVM 4 % @ 18 dBm mean power
  • Supply +4 V @ 182 mA
  • Vd applied either side of package

About Nick John

Nick John, Supplier Business Manager

Nick John is Supplier Business Manager of Passive Divisions at RFMW. With 20 years of industry experience, Nick has worked in sales, account management, and distribution. Passionate about timing solutions, Nick enjoys the fast-paced environment of the electronics industry, aiding customer designs, and enhancing partnerships with leading suppliers.

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RFMW is the premier pure play technical distributor of RF & Microwave semiconductors, connectors, and components for our customers and suppliers by providing component, value add, and design solutions through a focused technical sales and marketing organization.

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