Implementation of Reconfigurable Micro-Sensor Interfaces Utilizing FPAAs

In the present paper, an easy way to implement reconfigurable microsensor interfaces for analog sensors with nonstandardized output signals is introduced. This is enabled by the usage of field programmable analog arrays (FPAAs). FPAAs contain all common components that are necessary for the analog signal processing. Commercially available or in the last years published programmable sensor interfaces have the disadvantage, that they are only programmable in its parameters or functionality. Hence they are normally limited to a special kind of sensor. Sensor interfaces based on FPAAs can be also programmed in its connections, thus it is possible to support various types of analog sensors. As a result of this work we present a developed universal programmable sensor interface (UPSI) for different sensors and its behaviour