**ADG712BRZ: A Comprehensive Technical Overview of the CMOS Low Voltage 4-Channel Multiplexer**
The ADG712BRZ from Analog Devices represents a highly integrated solution for signal routing in space-constrained, low-voltage applications. As a **monolithic CMOS device**, it incorporates four independently selectable single-pole/single-throw (SPST) switches configured into a versatile 4-channel multiplexer/demultiplexer architecture. This component is engineered for precision and reliability, making it a cornerstone in modern electronic design where signal integrity and power efficiency are paramount.
A defining characteristic of the ADG712BRZ is its **operation down to a single 1.8V supply voltage**, making it exceptionally suitable for battery-powered and portable devices such as smartphones, tablets, and medical monitoring equipment. It remains fully functional with a supply range up to 5.5V, ensuring compatibility with both 3.3V and 5V system logic. The device leverages advanced CMOS technology to achieve **ultra-low power consumption and minimal on-resistance (typically 4 Ω)**. This low RON is critical as it minimizes signal attenuation and distortion, preserving the fidelity of analog signals passing through the switch.
The multiplexer is controlled via a simple 2-bit binary address (A0, A1) and an enable pin (EN). A key performance feature is its **break-before-make switching action**, which prevents momentary shorting between channels during switching transitions, thereby protecting both the signal sources and the multiplexer itself. The digital inputs are **1.8V logic compatible**, allowing for direct interfacing with low-voltage microcontrollers and FPGAs without the need for level-shifting circuitry. This simplifies system design and reduces the overall component count.
In terms of signal handling, the ADG712BRZ is designed for **bidirectional analog and digital signals** within the range of the supply rails (VSS to VDD). This bidirectional capability offers design flexibility, allowing the same device to be used as a multiplexer or a demultiplexer. Furthermore, it exhibits **excellent on-resistance flatness**, which is vital for applications requiring high linearity, such as audio signal routing and precision data acquisition systems.
Housed in a compact 16-lead SOIC package (BRZ suffix), the ADG712BRZ is optimized for automated assembly processes and offers a robust physical form factor for a wide array of commercial and industrial applications. Its combination of low voltage operation, minimal power dissipation, and high integration makes it an indispensable component for modern, efficient electronic systems.
**ICGOODFIND:** The ADG712BRZ stands out as a superior choice for designers seeking a highly reliable, low-voltage, 4-channel multiplexer. Its exceptional blend of **minimal on-resistance, broad supply range, and tiny form factor** provides an optimal solution for precision signal routing in power-sensitive portable applications.
**Keywords:** Low Voltage Operation, CMOS Multiplexer, Low On-Resistance (RON), Break-Before-Make, Bidirectional Signal Switching.
