**ADG782BCPZ: A Comprehensive Technical Overview of the 4-Channel SPST CMOS Switch**

The **ADG782BCPZ** from Analog Devices represents a state-of-the-art monolithic CMOS device integrating four independent single-pole/single-throw (SPST) switches. Engineered for precision and reliability, this switch is designed to handle a wide range of analog and digital signals in applications demanding high performance and low power consumption. Its architecture is optimized to provide minimal distortion and high signal fidelity, making it an ideal solution for data acquisition, instrumentation, communication systems, and audio routing.

A key feature of the ADG782BCPZ is its **break-before-make switching action**, which is critical for preventing momentary shorting between signal paths during transitions. This ensures signal integrity and protects downstream components. The device operates from a single **1.8 V to 5.5 V supply**, making it exceptionally versatile and suitable for both 3.3 V and 5 V systems, as well as battery-powered portable equipment. Each switch conducts equally well in both directions when on and offers a high degree of isolation when off.

The on-resistance (**R_ON**) of the ADG782BCPZ is remarkably low and flat, typically **0.5 Ω** with a supply of 5 V. This low and consistent resistance ensures minimal voltage drop and distortion of the transmitted signal, which is paramount for precision analog applications. Furthermore, the device boasts **ultra-low power consumption**, with a typical quiescent current of less than 1 nA, effectively preserving battery life in portable devices.

Housed in a compact **20-lead LFCSP (Lead Frame Chip Scale Package)**, the ADG782BCPZ offers an excellent footprint for space-constrained PCB designs. The package also provides improved thermal performance. The digital control interface is simple, with each switch controlled by its own logic input, which is **TTL/CMOS compatible**, ensuring easy integration with modern microcontrollers and digital signal processors.

**ICGOOODFIND:** The ADG782BCPZ stands out as a superior solution for modern electronic systems requiring precise and reliable signal switching. Its combination of **extremely low on-resistance, wide voltage operation, minuscule power consumption, and robust break-before-make functionality** makes it an indispensable component for design engineers aiming to optimize performance and efficiency.

**Keywords:** CMOS Switch, Low On-Resistance, Break-Before-Make, Low Power Consumption, SPST