**ADG658YCP: A Comprehensive Analysis of the 8-Channel CMOS Analog Multiplexer**

The ADG658YCP represents a pinnacle of integration and performance in the realm of analog signal switching. As an **8-channel single-ended CMOS analog multiplexer**, this device is engineered to handle a wide array of precision signal routing tasks across industrial, communication, and test and measurement systems. Its core function is to select one of eight independent analog input signals and connect it to a common output, acting as a highly reliable and efficient single-pole, eight-throw (SP8T) switch.

A fundamental strength of the ADG658YCP lies in its **CMOS construction**, which is instrumental in achieving exceptionally low power consumption. This makes it an ideal candidate for battery-powered and portable equipment where energy efficiency is paramount. Furthermore, the CMOS technology ensures very high off-isolation and extremely low leakage currents, which are critical for maintaining signal integrity, especially when dealing with high-impedance sources and low-voltage signals. The device guarantees **break-before-make switching action**, a crucial feature that prevents momentary shorting between adjacent channels during transition, thereby protecting delicate source circuitry.

The operational flexibility of this multiplexer is broad. It supports both digital and analog signals within a wide supply voltage range, typically from +3 V to +8 V dual supply or ±3 V to ±5 V. This allows it to seamlessly interface with both modern low-voltage microcontrollers and traditional ±5 V systems. The **on-resistance (Ron) is impressively low and flat**, typically around 5 ohms, which minimizes signal attenuation and distortion—a vital characteristic for preserving the accuracy of analog waveforms. The device also features TTL and CMOS-compatible digital inputs, simplifying interface with control logic.

Key specifications that define its performance include:

* **Low Power Consumption:** Typically less than 0.1 μW, ensuring minimal thermal footprint.

* **Fast Switching Times:** Turn-on and turn-off times are typically 175 ns and 145 ns, respectively, enabling rapid signal routing in dynamic systems.

* **High Continuous Current:** Can handle up to 30 mA of current per channel.

* **Robust ESD Protection:** Offers significant protection (≥ 2 kV HBM) for enhanced reliability in harsh environments.

The ADG658YCP is offered in a compact 16-lead LFCSP package, which is advantageous for space-constrained PCB designs. Its primary applications are diverse, spanning from **data acquisition systems (DAQ)** and automated test equipment (ATE) for channel selection, to audio and video signal routing, and battery monitoring systems in which multiple cell voltages need to be sequentially measured by a single analog-to-digital converter (ADC).

**ICGOO**DFIND

In summary, the ADG658YCP stands out as a superior solution for precision analog switching. Its combination of ultra-low power consumption, low and flat on-resistance, fast switching speed, and robust integration makes it an indispensable component for designers who prioritize signal fidelity, efficiency, and reliability in their electronic systems.

**Keywords:**

* **CMOS Analog Multiplexer**

* **Low On-Resistance**

* **Break-Before-Make Switching**

* **Low Power Consumption**

* **Signal Integrity**