**ADG412BRUZ: A Comprehensive Technical Overview of the High Performance Analog Multiplexer**
The ADG412BRUZ represents a pinnacle of integration and performance in the realm of analog multiplexers (muxes). Designed to handle precision signal routing in demanding applications, this monolithic CMOS device from Analog Devices provides a robust solution for switching analog and digital signals. Its architecture is engineered to deliver **exceptionally low on-resistance and high switching speeds**, making it a cornerstone component in data acquisition systems, automated test equipment (ATE), and medical instrumentation.
At its core, the ADG412BRUZ is a **4-channel single-ended multiplexer**, configured as a 4:1 mux. Each of the four independent switches can control signals ranging from the negative supply (VSS) to the positive supply (VDD), enabling true bidirectional operation. A critical feature of this device is its **break-before-make switching action**, which is essential for preventing momentary shorting between channels during the switching process, thereby protecting both the source signals and the multiplexer itself.
The performance of the ADG412BRUZ is defined by several key electrical characteristics. Its **low on-resistance (Ron) is typically 35 Ω**, which remains remarkably flat across the entire analog input range. This minimizes signal distortion and power loss, which is crucial for maintaining signal integrity in high-precision measurement systems. Furthermore, the device boasts an ultra-low **charge injection of less than 5 pC**, a parameter vital for reducing glitches and errors in sample-and-hold circuits and other precision data-acquisition applications.
Power supply flexibility is another significant advantage. The ADG412BRUZ operates from a **single supply range of +5 V to +30 V or dual supplies of ±5 V to ±15 V**. This wide range allows designers to interface with a variety of signal levels, from standard TTL/CMOS logic to higher voltage industrial sensors. The device also features TTL/CMOS-compatible digital inputs, ensuring easy interfacing with modern microcontrollers, DSPs, and FPGAs without requiring additional level-shifting circuitry.
Housed in a compact 16-lead TSSOP package, the ADG412BRUZ is designed for space-constrained applications. Its construction ensures **latch-up immunity under any circumstance**, a critical reliability feature that prevents device failure due to overvoltage transients. This robustness, combined with its excellent specifications, makes it an ideal choice for harsh industrial environments.
ICGOOODFIND: The ADG412BRUZ stands out as a superior analog multiplexer, masterfully balancing high performance, versatility, and reliability. Its combination of low on-resistance, fast switching, minimal charge injection, and broad supply range makes it an indispensable component for engineers designing the next generation of precision electronic systems.
**Keywords:** Analog Multiplexer, Low On-Resistance, Charge Injection, Break-Before-Make, CMOS.
