Potentiostats frequently find application in electrochemical biosensing, such as health-monitoring wearables, point-of-care devices, and implantable diagnostics. In these contexts, there's often a constrained power budget. Moreover, the input current range can span from a few picoamperes to several microamperes, necessitating a sensor interface with low power consumption and a wide dynamic range.
In recent years, various design architectures have emerged to realize and enhance such sensor-interface circuits. Novel approaches aim to eliminate powerhungry active amplifiers and shift more of the signal processing to the digital domain. This is achieved by employing current-steering digital-to-analog converters to regulate the sensor current.
In this work a novel, recently proposed sensor-interface circuit shall be studied. Goal of this thesis is to understand, rebuild and find the limitations of the proposed circuit, and possibly improve the novel architecture.
What we expect:
- Good understanding of Control Theory
- Experience in Matlab/Simulink
- Organized and well documented research and dedication to successful work