⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出了一种用于植入式生物医学SoC的精密弛豫振荡器，采用自时钟偏移消除方案，通过消除开关晶体管寄生电阻引起的校准非线性，提高了频率精度。该振荡器的频率仅由电容和校准参考电阻决定，适用于低功耗高精度时钟生成。
Physical Logic, Bnei Brak, Israel 1 that there is no current flow through the selected transistor Mn. This eliminates calibration nonlinearity due to the parasitic resistances of the switch transistors which are placed in series with the resistors in conventional implementations, and saves silicon area which would have been otherwise occupied by large switch transistors. When combined with the self-clocked offset cancellation, this current-generation scheme lets fOSC be solely determined by the values of C1, C2, and of the calibrated RREF. 2 Recently, there has been an increasing demand for SoCs in the biomedical field [1]. In implantable applications, SoCs are designed under very stringent power and area constraints. The analog and mixed-signal circuits as well as digital circuits in those SoCs require a clock source, because clock-based signal-processing techniques, such as sampling and chopper stabilization, are
Kunil Choe1, Olivier D. Bernal1, David Nuttman2, Minkyu Je1
Institute of Microelectronics, Singapore, Singapore