DG409AK-E3

The DG409AK-E3 is a single-pole/single-throw (SPST) analog switch ideal for precision signal routing in a wide variety of analog circuits. It is designed to provide excellent isolation between circuits while maintaining a low total harmonic distortion (THD) and fast response. The device operates from a single supply voltage between 2.7V and 5.5V. This makes the device suitable for a broad range of portable, battery-powered applications.

Applications

The DG409AK-E3 is very useful in a number of analog applications, including data acquisition from various sensors, measurement and test equipment, audio/video distribution systems, and telecommunication systems. As well as providing general switching between two analog paths, the device can be used for signal mixing and phase shifting.

Working Principle

The DG409AK-E3 uses a single-pole/single-throw (SPST) analog switch architecture in order to provide precise, low-distortion signal routing between two analog paths. The principle of its operation is based on capacity compensation, or “die-to-die” matching of its internal FETs. This technique helps to provide “static” performance features, such as very low off-isolation and even lower off-leakage in applications where two input sources are in close proximity. It also provides the device with “dynamic” characteristics including low distortion, fast switching times, and low power consumption.

Conclusion

The DG409AK-E3 is a ideal device for providing precise analog signal routing in a variety of applications. It is designed to maintain low total harmonic distortion, fast switching times and low power consumption while providing excellent input isolation between circuits. The inherent capacity compensation architecture of the device helps to ensure that data acquisition from various sensors, measurements, audio/video distribution systems, telecommunication systems, and other analog applications are performed with excellent precision.