**ADG201HSKR: A Comprehensive Technical Overview and Application Guide**

The **ADG201HSKR** is a high-performance, quad SPST (Single-Pole Single-Throw) analog switch from Analog Devices, designed for precision signal routing in demanding applications. Fabricated on an **advanced iCMOS® (industrial CMOS) process**, it combines low power consumption with the ability to handle bipolar analog signals, making it a versatile component in both industrial and scientific instrumentation.

A key feature of the ADG201HSKR is its **low on-resistance of typically 35Ω**, which remains exceptionally flat across the entire analog input range. This minimizes signal distortion and ensures accurate transmission of analog voltages. Furthermore, it boasts **ultra-low power dissipation**, making it ideal for battery-powered and portable equipment. The device operates from a **single supply voltage ranging from +12V to +15V** or dual supplies of ±15V, providing flexibility in various system designs. Its **TTL and CMOS-compatible logic inputs** allow for seamless interfacing with modern microcontrollers and digital signal processors (DSPs), simplifying control logic implementation.

The robust construction of the ADG201HSKR ensures **latch-up immunity** and incorporates electrostatic discharge (ESD) protection circuits, safeguarding the device and the larger system from transient events. Its performance is characterized by high switching speeds and excellent off-isolation, which are critical for maintaining signal integrity in multiplexing and data acquisition systems.

In practical applications, the ADG201HSKR excels in several critical roles. It is predominantly used in **precision data acquisition systems (DAQs)** for channel multiplexing, where multiple sensor inputs are sequentially routed to a single high-resolution analog-to-digital converter (ADC). This maximizes the utility of the ADC and reduces overall system cost and size. Within **test and measurement equipment**, such as oscilloscopes and spectrum analyzers, these switches are instrumental in selecting signal paths and ranges. Additionally, the device finds significant use in **audio and video signal routing**, **programmable logic controllers (PLCs)**, and **medical instrumentation** like patient monitoring systems, where reliability and signal fidelity are paramount. Its ability to switch signals in automated test equipment (ATE) enhances the flexibility and configurability of complex test setups.

**ICGOOODFIND**: The ADG201HSKR stands out as a superior solution for designers seeking a reliable, high-performance analog switch. Its optimal blend of low on-resistance, low power consumption, and broad compatibility makes it an indispensable component for precision signal management across a wide spectrum of industrial, medical, and communication applications.

**Keywords**: Analog Switch, iCMOS®, Low On-Resistance, Signal Integrity, Data Acquisition Systems.