High-speed low-power comparator for analog to digital converters

A Khorami, M Sharifkhani - AEU-International Journal of Electronics and …, 2016 - Elsevier
A low-power high-speed two-stage dynamic comparator is presented. In this circuit, the
voltage swing of the first stage of the comparator, pre-amplifier stage, is limited to Vdd/2 in …

A low-power high-speed comparator for analog to digital converters

A Khorami, MB Dastjerdi… - 2016 IEEE International …, 2016 - ieeexplore.ieee.org
A low-power high-speed two-stage dynamic comparator is presented. In this circuit, PMOS
transistors are used at the input of the first and second stages of the comparator. At the …

A low‐power technique for high‐resolution dynamic comparators

A Khorami, M Sharifkhani - International Journal of Circuit …, 2018 - Wiley Online Library
A low‐power technique for high‐resolution comparators is introduced. In this technique, p‐
type metal‐oxide‐semiconductor field‐effect transistors are employed as the input of the …

General characterization method and a fast load-charge-preserving switching procedure for the stepwise adiabatic circuits

A Khorami, M Sharifkhani - … on Circuits and Systems I: Regular …, 2016 - ieeexplore.ieee.org
An analytical method is presented to characterize stepwise adiabatic circuits (SACs). In this
method, the SACs are modeled as a discrete time system. Unlike previous methods, the …

An efficient fast switching procedure for stepwise capacitor chargers

A Khorami, M Sharifkhani - IEEE Transactions on Very Large …, 2016 - ieeexplore.ieee.org
A new low-power switching procedure for stepwise capacitor chargers is presented. In this
procedure, a novel displacement method is utilized to improve the speed by a factor of two …

A high-speed method of dynamic comparators for SAR analog to digital converters

A Khorami, M Sharifkhani - 2016 IEEE 59th International …, 2016 - ieeexplore.ieee.org
A low-power high-speed two-stage dynamic comparator is presented. The voltage
fluctuation at the first stage of the comparator (pre-amplifier stage) is limited to Vdd/2 …

An accurate low-power DAC for SAR ADCs

SB Yazdani, A Khorami… - 2016 IEEE 59th …, 2016 - ieeexplore.ieee.org
A highly energy-efficiency switching procedure for the capacitor-splitting digital-to-analog
converter (DAC) is presented for successive approximation register (SAR) analogue-to …

An Ultra Low-power Low-offset Double-tail Comparator

A Khorami, R Saeidi, M Sharifkhani… - 2019 17th IEEE …, 2019 - ieeexplore.ieee.org
In double tail comparators, the pre-amplifier amplifies the input differential voltage and when
the output V cm of the pre-amplifier becomes larger than V th of the latch input transistors …

An ultra low-power digital to analog converter for SAR ADCs

A Khorami, M Sharifkhani - 2017 29th International Conference …, 2017 - ieeexplore.ieee.org
A new structure of Capacitive Digital to Analog Converters (CDAC) for SAR ADCs is
presented. In this structure, a number of capacitors are used in different series configurations …

An Analysis of Stepwise Adiabatic Circuits

A Khorami, R Saeidi… - 2020 28th Iranian …, 2020 - ieeexplore.ieee.org
In this paper, an analysis on the stepwise adiabatic circuits is presented. In this analysis, the
energy consumption of stepwise adiabatic circuits for the case where it is possible to recycle …