SGA-2386

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RF amplifiers are used to increase the power of a signal or an RF signal in order to improve its transmission strength, range and efficiency. The SGA-2386 is a commercially available high frequency amplifying chip designed for use in various RF-amplifying applications.

The SGA-2386 is based on a gallium arsenide trans-impedance amplifier design with an integrated amplifier-to-TIA module. This module allows the amplifier to provide up to 4mW of output power with a high gain of 25dB from 0.1MHz to 2GHz. The amplifier features a low noise figure of 2.0dB at its highest frequency range of 2GHz and generally shows good linearity across the range.

The amplifier is most commonly used in mobile communication systems such as cellular phones, Wi-Fi radios, and UHF radio systems. It is well-suited for amplifying low power signals and is used in applications requiring low power consumption and size. The amplifier also has the ability to provide a high signal-to-noise ratio, wide dynamic range, and excellent distortion performance.

In terms of working principle, the SGA-2386 is a three-stage amplifier. The first stage is a differential preamplifier that provides gain and linearity performance across the entire frequency range. This stage is followed by a second stage buffer amplifier, which is designed for maximum gain and excellent RF and thermal stability. The third stage is a gain-booster amplifier that provides a final stage gain to suit the application requirements.

The SGA-2386 features an integrated bias generator circuit which allows for easy and accurate setting of the amplifier’s operating point. The amplifier includes an integrated wide band voltage regulator and current regulator for improved power efficiency. The SGA-2386 amplifier is packaged in a hermetically-sealed lead-frame package and is RoHS compliant.

The SGA-2386 is a widely used amplifier for a number of various RF-amplifying applications. Its integrated design, low power consumption, high signal-to-noise ratio, wide dynamic range and excellent distortion performance make it a suitable option for boosting the power of RF signals in mobile communication systems.

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