**ADG1406BRUZ: A Comprehensive Technical Overview of Analog Devices' 16-Channel Multiplexer**

The **ADG1406BRUZ** from Analog Devices represents a pinnacle of integration and performance in the realm of analog multiplexers. This monolithic, CMOS-based device is engineered to handle a wide array of signal switching applications, from precision measurement and data acquisition systems to automated test equipment (ATE) and communication infrastructure. Its core function is to select one of **16 independent analog input channels** and connect it to a common output, acting as a highly sophisticated, digitally controlled single-pole, 16-throw (SP16T) switch.

At the heart of the ADG1406BRUZ's performance is its **low on-resistance (Ron)** of just 4.5 Ω (typical), a critical parameter that minimizes signal attenuation and distortion. This low Ron exhibits exceptional flatness across the analog input range, ensuring linear signal fidelity. Furthermore, the device boasts an impressive **on-resistance matching between channels** of only 0.3 Ω (typical), which is paramount for maintaining accuracy in multi-channel systems where consistent performance across all paths is required.

The multiplexer operates over a broad **dual-supply range of ±5 V to ±22 V** or a single-supply range of +8 V to +44 V, providing designers with significant flexibility for various system-level voltage requirements. This wide supply range allows it to switch signals that span from the negative rail to the positive rail (**fully bidirectional operation**), making it equally suitable for positive, negative, or AC signals. The ADG1406BRUZ leverages a **3.3 V/5 V logic-compatible digital interface**, making it easy to control with modern microcontrollers, FPGAs, and DSPs without the need for level-shifting circuitry. The channel selection is determined by a 4-bit binary address (A0, A1, A2, A3) and an enable pin.

Key to its precision capabilities is its **break-before-make switching action**, which prevents momentary shorting between adjacent channels during transition, thereby protecting delicate source circuitry. The device also features very low leakage currents (sub-nanoampere levels) and high off-isolation, ensuring that disabled channels do not interfere with the active signal path. Housed in a compact 28-lead TSSOP package, the ADG1406BRUZ is designed for space-constrained applications without compromising on performance or robustness.

**ICGOOODFIND**: The ADG1406BRUZ stands out as a superior solution for high-accuracy, multi-channel signal routing, offering an optimal blend of ultra-low on-resistance, excellent matching, wide voltage handling, and seamless digital control.

**Keywords**: 16-Channel Multiplexer, Low On-Resistance (Ron), Wide Supply Range, Break-Before-Make, Bidirectional Operation.