A High Input Impedance Readout Integrated Circuit based on Continuous-Time Sigma-Delta Modulator with FIR DAC Feedback

This thesis focuses on the design of a high input impedance sensor readout system based on a continuous-time sigma-delta modulator with finite-impulse-response digital-to-analog converter feedback.<br/><br/>Both the system-level and circuit-level design techniques of this system are investigated. The concept and design methods of finite-impulse...

A Low-speed, Low-acceleration Controller for Cost-effective Reaction-wheels: Design, Simulation & Implementation

With the requirements for CubeSats increasing, a push towards utilizing high­performance equipment has never been greater. Incorporating these equipment in an environment that is cost­, space­ and power­constrained, is challenging. Simultaneously, high­performance equipment require high pointing­accuracy and low­jitter. This thesis proposes the...

Oscillator based Analog-to-Digital Converter for Action Potential Readout in Microelectrode Arrays

The functioning of the brain depends on the interplay between a large number of neurons. To understand the information processing in neuronal networks, we need tools to record the electrical activity of cells at high resolution. Microelectrode arrays (MEAs) are predominantly used to measure neuronal activity<br/>at high spatial and temporal...