A 0.5ps 1.4mW 50MS/s Nyquist bandwidth time amplifier based two-step flash-ΔΣ time-to-digital converter
Conference Paper
(2016)
Author(s)
Y Wu (TU Delft - Electronics)
R. B. Staszewski (TU Delft - Electronics, University College Dublin)
Research Group
Electronics
DOI related publication
https://doi.org/10.1109/EBCCSP.2016.7605282
To reference this document use:
https://resolver.tudelft.nl/uuid:734b6d3c-9714-46c3-a052-e6eb9a1a19b8
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Publication Year
2016
Language
English
Research Group
Electronics
Pages (from-to)
1-4
ISBN (print)
978-1-5090-4197-8
ISBN (electronic)
978-1-5090-4196-1
Abstract
We propose a 50-MS/s two-step flash-ΔΣ time-to-digital converter (TDC) using stable time amplifiers (TAs). The TDC demonstrates low-levels of shaped quantization noise. The system is simulated in 40-nm CMOS and consumes 1.3 mA from a 1.1 V supply. The bandwidth is broadened to Nyquist rate. At frequencies below 25 MHz, the integrated TDC error is as low as 143 fsrms, which is equal to an equivalent TDC resolution of 0.5 ps.
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