HMC204MS8GETR

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The HMC204MS8GETR is a low noise amplifier, part of the RF Misc ICs and Modules, and designed for either receive or transmit use in a broadband cellular system. It features a low noise figure, high gain with a wide dynamic range, fast recovery from overload and low thermal sensitivity. This versatile amplifier is suitable for use in systems operating over a wide temperature range and has excellent high frequency stability.

The HMC204MS8GETR has an application field as a wide dynamic range, low-noise amplifier in receive and transmit applications. Examples include communications systems such as wired and wireless radio, mobile and cellular systems, and wireless local area networks. It is ideal for operating in the frequency range of 2 - 8 GHz with a minimum gain of 16 dB.

The working principle of the HMC204MS8GETR is based on a low noise, high gain, wide dynamic range topology. This amplifier comprises a two-stage high dynamic range amplifier using field-effect transistors (FETs). The first stage is an input buffer configured as a differential amplifier, with high impedance transistor cascodes providing good output signal linearity. The second stage employs a similar approach with cascode transistors providing good gain. The output stage is a buffer stage to provide impedance matching. The device also includes temperature compensation circuitry, and voltage and current bias circuitry.

The HMC204MS8GETR provides superior noise performance due to the lower gate-drain capacitance and communication of the cascodes. The wide dynamic range allows for a wide range of input powers. The gain and noise figure remain within a few tenths of a dB variance over temperature, making the device suitable for applications requiring predictable gain over temperature. Additionally, the device is pre-layout matched to minimize matching errors.

The HMC204MS8GETR can supply very low noise and high current gain, making it suitable for use in wireless and mobile communications. It is especially convenient due to its wide dynamic range and excellent linearity over temperature. Due to its wide temperature range, the device can provide reliable performance in all seasons. The low noise figure allows the device to have a clear signal-to-noise ratio, perfect for many radio systems. The low thermal sensitivity makes it usable in a wide range of applications. With its superior noise performance, wide dynamic range, temperature linearity, pre-layout matching, and low thermal sensitivity, the HMC204MS8GETR is an ideal device for a wide range of application.

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