International Convention on Information and Communication Technology, Electronics and Microelectronics
The paper entitled “Voltage-to-Frequency Converter for Ultra-Low-Voltage Applications” has been published in the proceedings of the 42nd International Convention on Information and Communication Technology, Electronics and Microelectronics 2019!
This paper is focused on the design and analysis of a Voltage-to-Frequency Converter (VFC) that was implemented in 130 nm CMOS technology. The proposed VFC was designed using the bulk-driven technique and can reliably work with the power supply voltage of 0.4 V. Since its basic building block is a Fully Differential Difference Amplifier (FDDA), the proposed VFC has a differential output. Therefore, the high output frequency dynamic range (Δf OUT 3.45 kHz for the input range of 0-10 mV) as well as high sensitivity (348.8 Hz/mV) were obtained. The presented VFC can be used in complex ultra-low-voltage systems, where it would provide on-chip current consumption measurement.