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Lowering the power supply lower bound to the ultra-low voltages of 0.6V and less can be achieved by a Dynamic-Threshold Voltage MOSFET in Silicon-On-Insulator: DTMOS. The threshold voltage of DTMOS decreases as the gate voltage is increased, which allows the drive current to be significantly higher than in the regular MOSFET at lower power supply voltages. Because the voltage difference between gate and source is zero, the threshold voltage is large, and as a result, the leakage current is also low. The use of a voltage difference transconductance amplifier as an electronically tunable differentiator and integrator is proposed, designed, and analyzed. The proposed differentiator and integrator circuits can also be used as a PD and PI controllers respectively. The design is versatile and can be used in different applications such as temperature control systems, photo voltaic cells, waveform generators, microwave communications systems, and instrumentation systems.

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DTMOS Based Low Power Tunable Differentiator and Integrator Using VDTA for PD, PI Controllers

  • 会议论文

  • 发表日期：

    2026年

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  • R. Santosh,
  • S. P. Mutchakayala,
  • P. K. Vaddadhi,
  • T. Tatikonda,
  • S. Chandra

摘要

Lowering the power supply lower bound to the ultra-low voltages of 0.6V and less can be achieved by a Dynamic-Threshold Voltage MOSFET in Silicon-On-Insulator: DTMOS. The threshold voltage of DTMOS decreases as the gate voltage is increased, which allows the drive current to be significantly higher than in the regular MOSFET at lower power supply voltages. Because the voltage difference between gate and source is zero, the threshold voltage is large, and as a result, the leakage current is also low. The use of a voltage difference transconductance amplifier as an electronically tunable differentiator and integrator is proposed, designed, and analyzed. The proposed differentiator and integrator circuits can also be used as a PD and PI controllers respectively. The design is versatile and can be used in different applications such as temperature control systems, photo voltaic cells, waveform generators, microwave communications systems, and instrumentation systems.