**ADG752BRMZ: A Comprehensive Technical Overview of the 1 Ω CMOS Low Voltage Dual SPST Switch**

The ADG752BRMZ from Analog Devices represents a significant advancement in the integration of high-performance switching solutions for precision, low voltage applications. As a **monolithic CMOS device**, it incorporates two independently controllable Single-Pole Single-Throw (SPST) switches, offering designers a compact and highly reliable solution for signal routing, multiplexing, and switching in space-constrained and power-sensitive systems.

A defining characteristic of the ADG752BRMZ is its exceptionally low on-resistance, typically **just 1 Ω**. This minimal resistance is crucial as it ensures minimal signal attenuation and distortion when the switch is closed, preserving the integrity of the transmitted analog or digital signal. Furthermore, the on-resistance exhibits **excellent flatness across the specified input signal range**, which is vital for applications requiring high linearity and low total harmonic distortion (THD).

Designed for operation in modern low-voltage systems, the switch operates with a single supply voltage ranging from **+1.8 V to +5.5 V**. This wide supply range makes it exceptionally versatile, compatible with 1.8 V, 2.5 V, 3.3 V, and 5 V logic levels, facilitating easy integration into a vast array of portable, battery-operated, and industrial devices. The device also features **TTL/CMOS compatible digital inputs**, which are logic level translated, allowing them to be driven directly from microcontrollers and digital signal processors (DSPs) even when the supply voltage is as low as 1.8 V.

The ADG752BRMZ is offered in a compact 10-lead MSOP package, making it an ideal choice for high-density PCB designs. Each switch features a **break-before-make action**, preventing momentary shorting between channels during switching transitions. The architecture ensures very low power consumption and provides **latch-up immunity** under any circumstance, a critical feature for robust system operation.

Typical applications are broad and include:

* **Portable and Battery-Powered Equipment:** Audio and data signal routing.

* **Communication Systems:** Transmit/Receive switching.

* **Automated Test Equipment (ATE) and Instrumentation:** Precision signal multiplexing.

* **Data Acquisition Systems:** Channel selection and gating.

* **Sample-and-Hold Circuits:** Integrating the switching function.

**ICGOOODFIND**: The ADG752BRMZ stands out as a superior solution for designers seeking a miniature, low-voltage, dual SPST switch with industry-leading 1 Ω on-resistance. Its combination of low distortion, wide voltage range, and robust integration makes it an excellent choice for enhancing signal chain performance in demanding applications.

**Keywords**: Low On-Resistance, CMOS Switch, Dual SPST, Low Voltage Operation, Break-Before-Make.