**HMC374SC70E: A 5 W Power Amplifier for 24 - 34 GHz Ka-Band Applications**

The **Ka-band frequency spectrum (24 - 34 GHz)** is a cornerstone of modern high-frequency systems, enabling critical applications in satellite communications, 5G backhaul, radar, and advanced scientific instrumentation. Operating within this band presents significant challenges, particularly the demand for high linear output power in a compact and efficient form factor. The **HMC374SC70E** from Analog Devices Inc. stands out as a monolithic microwave integrated circuit (MMIC) power amplifier engineered specifically to meet these rigorous demands, delivering **exceptional power output in a minimal footprint**.

This GaAs InGaP heterojunction bipolar transistor (HBT) based amplifier is designed for ease of integration and robust performance. A key advantage of the HMC374SC70E is its ability to provide a saturated power output of **+37 dBm (approximately 5 Watts)** across the entire 24 to 34 GHz bandwidth. This high level of output power is essential for overcoming path loss and ensuring strong signal integrity in long-distance communication links. Furthermore, the amplifier exhibits a high **small-signal gain of 25 dB**, which significantly reduces the need for additional gain stages, thereby simplifying the overall system design and minimizing noise figure.

The device requires a single positive supply voltage between +5V and +8V, simplifying the power management subsystem. It incorporates an on-chip bias circuit that ensures stable operation over temperature, enhancing reliability. The **SC70 package is remarkably small for a component of this power class**, offering designers a solution that saves valuable PCB real estate in space-constrained applications like phased-array antennas and miniaturized terminal equipment. This makes it an ideal choice for both commercial and aerospace/defense applications where size, weight, and power (SWaP) are critical parameters.

Engineers can deploy the HMC374SC70E as a driver amplifier for higher-power systems or as a final power amplifier in compact radio designs. Its combination of wide bandwidth, high gain, and substantial power output provides the necessary headroom for complex modulation schemes, ensuring high data throughput and system efficiency.

**ICGOOODFIND**

The HMC374SC70E is a high-performance Ka-band MMIC power amplifier that successfully balances high output power (+37 dBm), high gain (25 dB), and wide bandwidth in an ultra-miniature SC70 package. It is an optimal solution for designers seeking to maximize performance while adhering to strict SWaP constraints in next-generation communication and radar systems.

**Keywords**

* **Ka-Band Amplifier**

* **Power Amplifier MMIC**

* **5 Watt Output Power**

* **24-34 GHz**

* **SC70 Package**