**ADL5387ACPZ-R7: A Comprehensive Overview of the 400 MHz to 6 GHz Demodulator**

The **ADL5387ACPZ-R7** from Analog Devices represents a significant advancement in RF signal processing, offering engineers a high-performance solution for demodulating a wide range of communication signals. As a **high-linearity, quadrature demodulator**, it is engineered to convert a single RF input directly down to baseband in-phase (I) and quadrature (Q) outputs, covering an exceptionally broad frequency range from **400 MHz to 6 GHz**. This capability makes it an indispensable component in modern wireless infrastructure, including cellular base stations, microwave point-to-point links, and a variety of military and test equipment.

A key attribute of the ADL5387 is its **exceptional linearity and dynamic range**. It boasts a high input third-order intercept point (IIP3) of up to 33 dBm and a noise figure of 10.5 dB, ensuring minimal distortion and superior signal integrity even when processing complex modulation schemes in the presence of large interferers. This performance is critical for maintaining the quality and accuracy of signals in densely populated spectral environments. The device is designed for ease of use, requiring only a single **+3.3 V or +5 V supply** and a local oscillator (LO) drive level as low as -10 dBm, simplifying system design and reducing component count.

The demodulator's architecture is meticulously crafted to provide unmatched amplitude and phase balance. It features precise internal phase shift networks that deliver outstanding **phase and gain balance** across its entire operating band. This results in very low carrier feedthrough and excellent sideband rejection, which are paramount for achieving high EVM (Error Vector Magnitude) performance in demanding applications like 5G NR and QAM-based systems. The differential baseband output ports are designed to drive subsequent circuitry, such as high-speed analog-to-digital converters (ADCs), directly.

Housed in a compact, 32-lead **5 mm × 5 mm LFCSP package**, the ADL5387ACPZ-R7 is optimized for space-constrained designs without compromising thermal or electrical performance. Its robust design ensures reliability and stability over a wide range of operating conditions.

**ICGOOODFIND**: The ADL5387ACPZ-R7 stands out as a premier demodulator IC, delivering unparalleled wideband performance, integration, and linearity. It is a cornerstone technology for designers building next-generation RF systems where signal fidelity and robustness are non-negotiable.

**Keywords**: Quadrature Demodulator, High Linearity, 400 MHz to 6 GHz, RF Signal Processing, I/Q Demodulator.