The MAX4473ESA, manufactured by Maxim Integrated, is a high-performance, dual single-pole single-throw (SPST) analog switch that operates from a single 1.8V to 5.5V supply. This versatility makes it suitable for a wide range of applications, including battery-powered devices, portable instrumentation, and communication systems.

Designed for precision and efficiency, the MAX4473ESA features low on-resistance (R<sub>ON) of just 0.8Ω (max) at a +5V supply, which ensures minimal signal distortion and power loss. Moreover, the R<sub>ON is matched between switches to within 0.2Ω (max) and is flat (0.2Ω max) over the specified signal range, providing excellent performance for analog signal switching.

With its low power consumption, the MAX4473ESA draws only 0.01nA (max) of supply current when not switching, making it an ideal choice for power-sensitive applications. Furthermore, the device's TTL/CMOS-logic compatible control inputs allow for easy interfacing with a wide range of microcontrollers and digital logic.

The MAX4473ESA comes in a compact SC70 or SOT23 package, which is highly beneficial for space-constrained applications. Its small footprint does not compromise its robustness, as it can handle continuous currents up to 300mA, and its ESD protection exceeds 2000V per Method 3015.7 of MIL-STD-883.

Key features of the MAX4473ESA include:

• Single 1.8V to 5.5V operation
• Low on-resistance: 0.8Ω (max) at +5V
• Guaranteed on-resistance match between channels: 0.2Ω (max)
• Guaranteed on-resistance flatness over signal range: 0.2Ω (max)
• TTL/CMOS-logic compatible
• Low power consumption: 0.01nA (max) supply current
• High continuous current capacity: 300mA
• Robust ESD protection: >2000V
• Available in SC70 or SOT23 packages

Whether it's for switching audio signals, routing precision analog signals, or interfacing digital logic to analog circuits, the MAX4473ESA from Maxim Integrated offers a reliable and efficient solution.