MGA-725M4-TR2

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RF Amplifiers are essential components for many wireless and communications applications, and specifically there has been increased demand recently for amplifiers with low noise, high efficiency, and wide bandwidth characteristics. The MGA-725M4-TR2 from Avago Technologies Pte Ltd is a high-performance RF amplifier that meets these criteria, suitable for a variety of applications including high-end telecommunication up to 6GHz. This article aims to discuss the application field and working principle of the MGA-725M4-TR2.

Suitable for both linear and saturated operation, the MGA-725M4-TR2 is a GaN-based HEMT RF amplifier with a typical gain of 22 dB and an output power of 21 dBm. The amplifier has a drain efficiency better than 55%, meaning that the majority of the input power is converted into useful output power. The wide power bandwidth of the amplifier, from 0.5 to 6 GHz, makes it suitable for a range of applications from cellular to Wi-Fi. The wide frequency range also means that the amplifier can be readily adapted to a variety of systems with different requirements. Additionally, the S-parameter data of the amplifier is very good, which is important for modulated signals.

The MGA-725M4-TR2 operates in a class AB amplifier configuration, meaning that the input signal voltage is amplified in both the positive and negative when passing through the amplifier. This produces higher gain than in a class B amplifier, but also results in higher power dissipation, reducing efficiency. In the MGA-725M4-TR2, the input bias current is set at 25 mA and the supply voltage is 1.2 V. This is sufficient power for an RF amplifier of this type, and the low current consumption of the amplifier ensures that it can work in extreme temperature conditions without significant power loss.

The MGA-725M4-TR2 also has a very low noise figure and high linearity, making it ideal for high-end applications where low noise and high linearity are key. The amplifier is equipped with an integrated temperature sensor which allows it to operate within a specified temperature range with no degradation in performance. This ensures consistent performance over a wide range of temperature and humidity. Additionally, the amplifier is designed to be robust and reliable, and can operate without any significant degradation in high peak powers.

The MGA-725M4-TR2 is a versatile and high-performance RF amplifier, suitable for a variety of applications. The wide bandwidth, high efficiency, low noise, and high linearity make it ideal for a range of applications from cellular to Wi-Fi. Notably, the amplifier is designed to be robust and reliable, and can operate without any significant degradation in high peak powers. Additionally, the high drain efficiency of the amplifier ensures that most of the input power is converted into useful output power. All these features make the MGA-725M4-TR2 an ideal choice for high-end RF signal amplification.

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