Design of Low Power Comparator and Binary Code Encoder for 5 Bit Parallel Adc
V. Narasimha Nayak1, Venkata Ratnam Kolluru2, B.Manisha3, M.Surya Teja4, V.Sowjanya Ch.Naveen5
1V. Narasimha Nayak, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P), India.
2Venkata Ratnam Kolluru, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P), India.
3B.Manisha, M. Surya Teja, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P), India.
4V.Sowjanya Ch. Naveen, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P), India.
Manuscript received on 18 April 2019 | Revised Manuscript received on 25 April 2019 | Manuscript published on 30 April 2019 | PP: 1573-1577 | Volume-8 Issue-4, April 2019 | Retrieval Number: D6676048419/19©BEIESP
Open Access | Ethics and Policies | Cite | Mendeley | Indexing and Abstracting
© 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: ADC is one of the important building element many communication systems. Among all the ADC’s flash ADC is preferred for low resolution and high speed applications. Flash ADC consists of comparator and encoder. There are many ways out in the world to implement an encoder and comparator which are the basic parts of ADC. The paper comprises of a comparator and a high speed, low power encoder with a sampling rate of 5Gs/s using different MOS technologies. Full adder based encoder and mux based encoder are designed using CPTL and transmission gate logic. The simulation results shows that power dissipation of the encoder using transmission gate logic is observed to be almost double that of the complementary pass transistor logic. The design and implementation are done by mentor graphics tool using 130nm technology with a supply voltage of 1.2V.
Keywords: ADC, Complementary Pass Transistor Logic (CPTL), Transmission Gate Logic, Flash ADC, Comparator, Encoder.
Scope of the Article: Fuzzy Logics