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Distributed PA Accepts Frequencies Far and Wide

Covering a frequency range of dc to 24 GHz, this new distributed power amplifier offers the benefit of a positive gain slope.

Microchip Technology, through its Microsemi subsidiary, now offers the MMA052PP45 gallium-arsenide (GaAs) monolithic-microwave-integrated-circuit (MMIC) pseudomorphic high-electron-mobility-transistor (pHEMT) distributed power amplifier (PA) (see figure). This self-biased device handles a frequency range of dc to 24 GHz, providing 14 dB of gain with a positive slope.


The MMA052PP45 distributed amplifier operates from dc to 24 GHz.

At 10 GHz, the MMA052PP45 achieves a noise figure of 3.5 dB. At the same frequency, its output power at 3-dB compression is +27 dBm with a typical output third-order intercept point (OIP3) of +35 dBm. The amplifier, a self-biased device with 16 selectable drain current states, comes in a 4.5- × 4.5-mm quad-flat no-leads (QFN) package. Input and output ports are both matched to 50 Ω. The MMA052PP45 is well-suited for test-and-measurement, wideband aerospace and defense, and high-linearity microwave radio applications.

Since the MMA052PP45 has a positive gain slope, it can help system designers compensate for high-frequency loss from passive components, as well as other amplifiers with a negative gain slope. The MMA052PP45 was demonstrated at IMS 2019, which gave visitors an opportunity to see it in action.

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