**ADG787BRMZ: A Comprehensive Technical Overview of the Analog SPDT Switch IC**

The **ADG787BRMZ** from Analog Devices represents a highly integrated, monolithic CMOS single-pole double-throw (SPDT) switch, engineered to deliver exceptional performance in a compact form factor. Designed for a broad range of analog and digital switching applications, this IC is a cornerstone solution for signal routing where precision, low power, and high reliability are paramount.

Housed in a space-saving 10-lead MSOP package, the **ADG787BRMZ** is optimized for portable and battery-operated equipment. Its core functionality is to **route one common input to one of two possible outputs**, or operate in reverse as a 2:1 multiplexer, under the control of a single digital select pin. A standout feature is its **wide voltage supply range from 1.8 V to 5.5 V**, making it perfectly compatible with lower voltage processors and systems while also supporting traditional 5 V logic. This flexibility allows for seamless integration into mixed-voltage environments.

Electrical performance is a key strength. The device boasts an ultralow power consumption, with a typical supply current of just 3 nA, which is critical for preserving battery life. It offers a very **low on-resistance (Ron) of 0.5 Ω typical** with minimal flatness across the signal range, ensuring minimal signal attenuation and distortion. Furthermore, the **on-resistance matching between channels is exceptionally tight**, guaranteeing consistent performance when switching paths.

The ADG787BRMZ is designed for **break-before-make switching action**, a crucial characteristic that prevents momentary shorting between the two channels during transition, thereby protecting sensitive source and destination circuitry. Its architecture also provides **excellent linearity and low total harmonic distortion (THD)**, making it suitable for precision audio and video signal routing. The device features **latch-up immunity and ESD protection** up to 2 kV, safeguarding it against electrostatic discharge events common in manufacturing and end-user environments.

Typical applications are diverse, spanning from **audio and video signal routing** in consumer electronics, **communications systems**, and industrial instrumentation to **programmable gain amplifiers** and **automated test equipment (ATE)**. Its ability to switch analog signals equally well in both directions (bidirectional operation) adds to its versatility.

**ICGOOODFIND**: The ADG787BRMZ stands out as a superior analog switch IC, masterfully balancing miniaturization, ultra-low power operation, and robust electrical characteristics. Its ability to maintain signal integrity with negligible loss and distortion makes it an indispensable component for designers tackling the challenges of modern, space-constrained, and power-sensitive electronic systems.

**Keywords**: **SPDT Switch**, **Low On-Resistance**, **Low Power Consumption**, **1.8 V to 5.5 V Operation**, **Break-Before-Make**.