HMC455LP3TR

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RF amplifiers are devices designed to amplify weak signals in the radio frequency range. The HMC455LP3TR is a high-performance, wide-band, general-purpose RF amplifier with excellent linearity and low distortion. It is designed to operate from DC to 4 GHz, and is suitable for use in applications including but not limited to, base station, radar, and communication systems.

HMC455LP3TR offers low noise levels of 3.5 dB noise figure and excellent linearity of up to 25 dB power gain. It is constructed using a GaAs/InGaP Heterojunction Bipolar Transistor (HBT) process. Its high power handling capabilities and low distortion allows it to perform in physically demanding radiofrequency environments.

The device operates from a single +3V power supply with an input impedance of 50Ω and a maximum power output of 35 dBm (S21) at 1.8 GHz. The part is factory calibrated and requires no external components for operation. It features high linearity with low distortion, excellent gain flatness, and excellent temperature stability across a variety of test conditions. The part is ideal for use in radios, medical equipment, signal processing, automotive applications and other commercial and consumer products.

HMC455LP3TR is a two-stage amplifier. The first stage of the amplifier is composed of a single differential amplifier, with a resistor load bridging both sides of the differential nodes. This provides the necessary gain to drive the second stage. The second stage is a cascode that provides additional gain and improved noise performance. Both stages are biased with a single voltage source, which helps reduce the thermal noise of the amplifier.

The amplifier features a positive current source on the output node, which can be used to reduce the gain of the amplifier DNL (dynamic non-linearity). The amplifier also utilizes a single bypass capacitor and an impedance inverter on the output to provide additional stability and flexibility.

HMC455LP3TR is ideal for a wide range of applications in which linearity, low noise, and high power are required. Its excellent performance makes it suitable for use in low power base station, radar, medical, and communications applications. The device is available in a small lead-free 5-Pin SOT-346 package, which allows for easy integration into a variety of products.

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