Ultra Low Power Capacitive Sensor Interfaces

Increasingly, medical diagnostics, comfort, entertainment, and sports applications make use of capacitive sensor systems in and around the body., these function as small distributed units that collect data over a long period of time. Ultra low power electronics are a major challenge in these applications.

Ultra Low Power Capacitive Sensor Interfaces describes the design and theory of ultra low power capacitive sensor interfaces. The book?s major asset is the realization of a very low power generic sensor interface chip that is adaptable to a broad range of capacitive sensors.

The book opens by reviewing the most important design aspects for autonomous sensor systems. The different building blocks are discussed and the modular architecture for the generic sensor interface chip is presented. Next, the design of analog components, such as capacitance-to-voltage converters, switched capacitor amplifier, Sigma Delta modulator, oscillators and reference circuits, is described in more detail. Finally, the generic sensor interface chip is applied in several state-of-the-art pressure sensor and accelerometer applications.

Ultra Low Power Capacitive Sensor Interfaces is essential reading for anybody with an academic or professional interest in semiconductor design.

IC designers, system designers, electronic engineers, electronic product developers for autonomous systems, research students, academia