The goal of our research in analog-to-digital converters (ADCs) focuses mainly on the design of high-resolution SAR ADC architectures as well as different types of Sigma-Delta ADCs. The target applications involve biomedical implants, sensor readouts and communication links. Furthermore, we develop design methodologies for Sigma-Delta modulators. This includes development of new architectures as well as improvement of the established techniques.
Our research in biomedical electronics focuses on both, epiretinal (Group Prof. Ortmanns) and subretinal (Group Prof. Rothermel) implants.
Beside, also research is conducted on general circuit techniques for implantable circuits and systems (Group Ortmanns), beyond others on neural recording and stimulation circuitry, electrically safe tissue interfacing, closed loop stimulation electronics, wireless, low-power data communication and real-time control of telemetric energy transfer.
In our research we look into Electronic System Level (ESL) design methodologies such as Component-Based Design or Platform-Based Design, modern heterogeneous compute architectures for energy-efficiency, and analog/digital interfaces for connected mobile Configurable Systems. These offer additional degrees of freedom for cost and performance optimizations, provide flexibility for changes throughout the entire life cycle and can help fight microelectronic parts obsolescence.
Our research on runtime reconfigurable systems emphasizes both analog and digital circuits. The focus is to implement intelligent reuse and variable wiring of suitable parts both for rapid prototyping and also flexible implementations. In contrast to application specific integrated circuits, our reconfigurable systems are adaptable to various constraints during deployment in the field.