**ADG1421BRMZ: A High-Performance, Quad SPST ±15 V/+12 V/±5 V Analog Switch**

In the realm of precision signal routing and system design, the selection of an appropriate analog switch is critical for maintaining signal integrity and ensuring reliable performance. The **ADG1421BRMZ** stands out as a premier solution, engineered to meet the demanding requirements of industrial, instrumentation, and communication applications. This quad, single-pole/single-throw (SPST) switch is designed to handle a wide range of analog and digital signals with exceptional accuracy and minimal distortion.

A key attribute of the ADG1421BRMZ is its **versatile supply voltage capability**, supporting operations at ±15 V, +12 V, and ±5 V. This flexibility allows designers to integrate the switch into various system architectures without necessitating additional voltage conditioning components, thereby simplifying board design and reducing overall system cost. The device's ability to manage bipolar signals up to ±15 V makes it particularly suitable for high-voltage applications such as automated test equipment (ATE) and data acquisition systems, where signal levels can vary significantly.

The **low on-resistance (Ron)** of just 2.5 Ω (typical) ensures that signal attenuation is minimized, preserving the fidelity of both analog and digital pathways. This characteristic is paramount in precision applications where even minor losses can lead to measurable errors. Moreover, the flatness of Ron across the input signal range further enhances performance by maintaining consistent switch behavior regardless of signal amplitude.

Another standout feature is the device's **ultra-low power consumption and leakage currents**. With a power supply current of less than 1 nA in the off state and leakage currents measured in picoamperes, the ADG1421BRMZ is ideal for battery-powered and portable devices where power efficiency is crucial. This low leakage also contributes to higher measurement accuracy in sensitive analog circuits by reducing error sources.

The ADG1421BRMZ incorporates **break-before-make switching action**, which prevents momentary shorting between channels during switching transitions. This protects downstream components from potential damage and ensures signal integrity during multiplexing or switching operations. The robust design includes **latch-up immunity** and ESD protection up to 4 kV, providing enhanced reliability in harsh operating environments.

Packaged in a compact 10-lead MSOP, the device offers a small footprint without compromising thermal performance or ease of assembly. Its **fast switching times** (ton = 75 ns, toff = 45 ns) enable high-speed signal routing, making it suitable for applications requiring rapid data sampling or channel sequencing.

**ICGOOODFIND**: The ADG1421BRMZ is a superior quad SPST analog switch that combines high voltage handling, low on-resistance, and minimal power consumption. Its robust design and flexible supply options make it an excellent choice for precision signal routing in a wide array of high-performance systems.

**Keywords**: Analog Switch, Low On-Resistance, High Voltage Handling, Low Power Consumption, Break-Before-Make