Design of High Speed Comparator using DTMOS Technique with low Power Consumption
Ujjayini Debnath1, Shobha Sharma2, Amita Dev3
1Ujjayini Debnath, Electronics and Communication, Indira Gandhi Delhi Technical University for women, Delhi, India.
2Dr Shobha Sharma, Corresponding Author, Faculty, Electronics and Communication, Indira Gandhi Delhi Technical University for women, Delhi, India.
3Amita Dev, Pro VC, Indira Gandhi Delhi Technical University for women, Delhi, India.
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 2947-2952 | Volume-8 Issue-8, June 2019 | Retrieval Number: H7307068819/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The comparator circuits are used to compare signals whether it is analog or digital signal. We use of Comparators in Analog-digital-convertors (ADC) as one of its basic elements. Nowadays semiconductor industries are demanding for powers as less as possible and with faster operation. The paper represents a double tail comparator by using DTMOS operation. This type of comparator design of a double tailed structure consists basically of two stages. First one is preamplifier stage and another one is latching stage. The conventional comparator circuit designing is improved with a dynamic comparator (double tailed) to decrease the power consumption and the voltage in the meantime increasing the speed, keeping frequency at 500 MHz Scaling of Technology of the MOS transistor in semiconductor industry provides low power consumption by applying ultra-low input voltage which minimizes the timing delay. This design in this paper has been simulated in using CADENCE virtuoso in 90 nm CMOS technology. Main purpose of this topic is to alleviate the switching delay of the comparator as well as ADCs for small supply voltage.
Keyword: Clock gating, Delay, Dynamic Comparator, Low voltage, Preamplifier latch, DTMOS, Analog to Digital Convertor (ADC).
Scope of the Article: Design and Diagnosis.