Abstract:Summary
In this paper, we present an improved full Wilson current mirror‐based interface system, which utilizes an auto‐balancing technique, for High Electron Mobility Transistor (HEMT)‐based biochemical sensors. The auto‐tuning technique maintains a constant voltage across the sensor and simultaneously provides an output voltage proportional to the measurand. The proposed circuit is particularly useful for HEMT‐based sensors with large offset current since the design performs base current compensation. The de… Show more
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