**ADRF5040BCPZ-R7: A High-Performance Silicon SPDT Absorptive RF Switch**

The **ADRF5040BCPZ-R7** stands as a pinnacle of modern RF switch design, engineered to meet the demanding requirements of next-generation telecommunications, test and measurement equipment, and aerospace and defense systems. As a **Single Pole Double Throw (SPDT)** switch constructed on an advanced silicon process, it delivers exceptional performance from 9 kHz up to an impressive 44 GHz. This broad frequency coverage makes it an incredibly versatile component for a wide array of applications, including 5G infrastructure, microwave radio, and SATCOM.

A defining characteristic of this switch is its **absorptive topology**. Unlike reflective switches, which direct unused RF energy back towards the source—potentially causing damage or signal integrity issues—the ADRF5040BCPZ-R7 terminates unused ports into a matched 50-ohm load. This critical feature **minimizes harmful signal reflections**, ensuring system stability, protecting sensitive components, and simplifying overall design by mitigating the need for additional external circuitry to manage reflected power.

Performance metrics for the ADRF5040BCPZ-R7 are outstanding. It exhibits **ultra-low insertion loss**, typically just 1.3 dB at 20 GHz and 1.8 dB at a staggering 40 GHz, preserving valuable signal strength. Its isolation performance is equally remarkable, reaching up to 48 dB at 20 GHz, which effectively prevents signal leakage between channels. The switch also handles high input power well, with an **IP1dB compression point of 33 dBm**, allowing it to manage high-power signals without significant distortion. Furthermore, its rapid switching speed of approximately 20 ns enables fast tuning and efficient frequency hopping in advanced systems.

Housed in a compact, RoHS-compliant 20-lead **4 mm × 4 mm LFCSP package**, the device is ideal for space-constrained PCB designs. Its **single positive supply operation** from 3.15 V to 3.45 V simplifies power management, while its CMOS-compatible control logic allows for easy interfacing with FPGAs and microcontrollers.

**ICGOOODFIND**: The ADRF5040BCPZ-R7 emerges as a superior solution for high-frequency systems, masterfully combining wide bandwidth, excellent linearity, and absorptive operation in a miniature package to enhance signal integrity and design reliability.

**Keywords**: RF Switch, Absorptive, High Isolation, Broadband, SPDT.