Given the growing trend towards wireless communication, it’s important that RF signals reach their destinations clearly and without deterioration. In this article, learn about the latest RF amplifiers from Analog Devices for use in today’s powerful systems.
Analog Devices’ power amplifiers are based on GaN and GaAs semiconductor technology spanning kilohertz to 95GHz, supporting both bare-die and surface-mount component solutions. Designed for excellent linearity at high output power, they maintain good heat dissipation and high reliability at elevated temperatures for a wide variety of wired and wireless applications. Many of the power amplifiers cover decades of bandwidths supporting instrumentation and military applications with a single IC. There are numerous narrowband products supporting both telecommunication and satellite communication links as well.
Wideband Distributed Amplifiers & Driver Amplifiers
GaAs MMIC-based wideband distributed amplifiers cover the DC to 65GHz frequency range in various ultrawide bandwidths to meet your needs in applications such as electronic warfare, radar, electronic countermeasures, optical applications, and instrumentation. To meet diverse design requirements, some of the LNAs also offer internal self-biasing that requires only a signal drain voltage to operate. Driver amplifiers are available in a wide range of medium-power, general-purpose configurations covering the frequency range from 400MHz (IF) to RF microwave and W-Band (86GHz). These driver amplifiers include output powers from 15 dBm up to approximately 1 watt while covering various frequencies, bandwidths, and gain levels.
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RF Amplifier Bias Controllers
RF amplifier bias controllers generate a regulated drain voltage and actively adjust the gate voltage of an external amplifier to achieve constant bias current. They can be used to bias any enhancement and depletion type amplifier operating in a Class-A regime with drain voltages (VDRAIN) as specified. These devices achieve excellent bias stability oversupply, temperature and process variations, and eliminate the required calibration procedures used to prevent RF performance degradation due to such variations.
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Low Noise Amplifiers
Low noise amplifiers cover the frequency range from DC (IF) to RF Microwave and W-Band (95GHz). These MMIC-based designs cover various gains and bandwidths with noise figures as low as 0.7 dB. They offer some of the lowest noise and highest linearity available in the industry. Many of the designs offer a self-biased topology and are internally matched to 50 ohms. These amps are used in a wide range of applications including telecom, instrumentation, and military/aerospace. All Analog Devices low noise amplifiers are fully specified over frequency, temperature, and supply voltage.
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ADL9005
LF to 28GHz Wideband LNAs
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Low Phase Noise Amplifiers
Low phase noise amplifiers are critical for many applications requiring high signal integrity. This is especially relevant in instrumentation, defense, and telecommunication applications where low phase noise amplifiers are becoming increasingly important as oscillators improve. Phase noise is described as the close-in noise to the carrier that can often appear as a jitter on a clock signal. Analog Devices offers a large portfolio of low phase noise amplifiers to meet a variety of requirements in the LO network, receiver, as well as in transmitters.
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Phased Array RF Front End ICs (LNA, PA, Switch)
Integrated front-end ICs are utilized in phased array antennas, providing a more compact solution that is more easily deployed. The front-end ICs can be paired with Analog Devices beamforming ICs (such as ADAR1000) for analog beamforming antennas or transceiver/data converter products for digital beamforming antennas. These front-end ICs integrate the power amplifier (PA), low noise amplifier (LNA), and transmit/receive switch (SW) that mate with the antenna element for radar applications.
The compact size and simplification of these products enable flat panel array technology that would have previously been very difficult with conventional standard single-function products. These products not only contain the PA/LNA/SW but all of the passive circuitry needed for utilizing these parts. Some of these products may be used in CW applications such as datalinks as well as pulsed radar applications.
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For more information, or to get further details about individual specs, click through to the article.