Integrated Circuit Design Techniques of Energy Harvesting PoweredAnalog Signal Processing in Sensor and Power Network

点击翻译按钮获取中文摘要

Effect of temperature variation on integrated circuits for analog signal processing in sensor network was considered and schemes for maintaining circuit performance were proposed. First, MOSFET model is improved for the weak inversion region to express dependency on substrate potential and temperature. Second, a 0.6-V wide-dynamic range filter, which had been designed and implemented by a group of this researcher, was analyzed based on the model described above and its sensitivity with respect to temperature was suppressed by use of a bias voltage source with a negative temperature coefficient. Last, current mirrors are investigated and less than 1-% error between input and output currents at 400 K was achieved through analysis based on the model and formulation for the optimum design.