A. Abdelaal: Continues time delta sigma modulators (CTDS) have recently become the key device for broadband wireless and wireline communication. Due to there built in anti-aliasing filter and the ability to have relaxed sampling requirements the CTDS modulators are preferred over there discrete time counterparts ... [more]
P. Kässer: ΣΔ A/D converters are the state of the art for many different applications. The basis for this type of A/D converter is the ΣΔ modulator. For a long time, discrete-time (DT) ΣΔ modulators dominated as their design techniques could easily be adopted to ensured high performance ... [more]
M. Pietzko: Continuous-time delta sigma modulators (CT-DSMs) have recently become the key device for broadband wireless and wireline communication. Due to their built in anti-aliasing filter and the ability to have relaxed sampling requirements the CTDS modulators are preferred over their discrete-time counterparts. ... [more]
D.-P. Wiens: Precise current-sensing front-ends are essential in many bioelectronic and electrochemical sensing applications. These systems often have stringent requirements for low noise and high bandwidth performance. Low noise is essential to ensure high sensitivity, while wide bandwidth is required to capture rapidly changing AC signals ... [more]
M. Häberle: Many life and material science applications like Scanning Ion Conductance Microscopy (SICM) and Electrically Detected Magnetic Resonance put demanding constraints on readout electronics. In a SICM experiment a pipette is used to map the surface of soft biological samples. An EDMR experiment is used to derive the efficency of solar cell materials ... [more]
J. Becker: Many attempts have been made to apply rapid-prototyping techniques known from the digital domain to analog designs. The goal of the presented work is to develop an FPAA, which is suitable for reconfigurable implementation of analog continuous-time (CT) high-frequency filters on an integrated circuit ... [more]
