HMC634LC4

Series:	--
Packaging:	Cut Strip
Part Status:	Active
Frequency:	5GHz ~ 20GHz
P1dB:	22dBm
Gain:	21dB
Noise Figure:	7.5dB
RF Type:	General Purpose
Voltage - Supply:	5V
Current - Supply:	180mA
Test Frequency:	--
Package / Case:	24-TFQFN Exposed Pad
Supplier Device Package:	24-SMT (4x4)
Base Part Number:	HMC634

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RF Amplifiers: HMC634LC4 application field and working principle

RF amplifiers are devices that utilize RF carrier to transport signals over vast distances. They enable an exchange of data in an efficient and secure manner. The HMC634LC4 is an advanced RF amplifier designed for medical, aerospace and other highly sensitive applications. This amplifier offers superior performance due to its impressive features like high linearity, high dynamic range and excellent noise immunity. The HMC634LC4 is a single-stage GaAs pHEMT amplifier featuring a built-in active bias reference, a temperature controlled output for thermal stability and an improved input/output match that minimizes signal distortion. This amplifier utilizes a wideband GaAs pHEMT process that offers a 15 dBm output power with a symmetrical gain of 12 dB and a third order intercept point of +28 dBm. The input/output match is excellent, providing high immunity from image interference and low sensitivity to load variations, even with a very low output match. This high-performance amplifier is ideal for medical and aerospace applications that require extreme levels of signal power and accuracy. The amplifier has an extremely low signal distortion, making it perfect for applications that demanded superior linearity performance over wide dynamic range. Additionally, the amplifier also has a low noise figure, making it suitable for noise sensitive applications. The HMC634LC4 has a wide range of features that make it suitable for high-end medical and aerospace applications. These features include a high input level capability and a low input referred current that minimizes input capacitance and noise. The integrated temperature control output significantly reduces thermal drift of the output stage, while the active bias reference reduces loop gain variability to ensure a stable system. The amplifier also features an improved internal impedance matching network, reducing supply pin current variation and improving power performance. The working principle behind the HMC634LC4 is based on amplifier linearity and stability. The amplifier uses two matched transistors to provide the desired linearity and stability. These transistors are configured in a push-pull configuration, where one transistor is used to amplify the voltage of the signal and the other transistor is used to provide negative feedback, which prevents signal distortion and stabilizes the amplifier. The amplifier also incorporates a low noise input stage, which provides DC bias to the amplifier’s input. The HMC634LC4 offers many premium features that make it suitable for high-end medical and aerospace applications. Its superior linearity combined with excellent noise immunity and low noise figure makes it suitable for these demanding applications. The amplifier also features an improved input/output match, reducing signal distortion and maximizing power efficiency. Finally, the integrated temperature control output ensures thermal stability, while the active bias reference reduces loop gain variability and preserves system stability.

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