2024 : 5 : 19
Amin Mirzaei naghlbari

Amin Mirzaei naghlbari

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0002-5120-6602
Education: PhD.
ScopusId: 36809806700
Faculty: Engineering
Address: Arak University


Analysis and Design of a New 10-Bit High Accuracy and Resolution TDC by Eliminating of Offset Voltage and Parasitic Capacitors Effects
Time-to-digital converter(TDC), Analog interpolation, Time stretching, Dual-slope conversion, Pipeline TDC, Cyclic TDC
Journal Journal of Circuits, Systems and Computers
Researchers Mahdi Rezvanyvardom ، Amin Mirzaei naghlbari


This paper investigates a time-to-digital converter(TDC) that employs interpolation and time stretching techniques for digitizing the time interval between the rising edges of two input signals as well as increasing the resolution. In the proposed TDC, interpolation is performed based on a dual-slope conversion. The proposed converter eliminates the comparator offset voltage error and the comparator parasitic capacitor error compared with the TDCs that have been proposed previously. The features of the converter consist of the high accuracy and high resolution due to eliminating errors and using the analog interpolation structure. Moreover, it does not use gated delay lines in its structure leads the advantage of low sensitivity to the temperature, power supply and process(PVT) variations. For validation, the proposed TDC is designed in TSMC 0.18μm CMOS technology and simulated by Hspice simulator. The comparison between the theoretical and simulation results confirms the benefits of the proposed TDC operation. The results prove that it can be employed for high speed and resolution applications.