Novel, low-supply, differential XOR/ XNOR with rail-to-rail swing, for hamming-code generation. Issue 3 (3rd July 2018)

• Record Type: Journal Article
• Authors: Sarada, Musala; Srinivasulu, Avireni; Pal, Dipankar
• Is Part Of: International journal of electronics letters. Volume 6:Issue 3(2018)
• Page Start: 272
• Page End: 287
• Publication Date: 2018-07-03
• Subjects: Index Terms—XOR/XNOR -- Pass Transistor -- Transmission Gate -- Noise Margin -- Rail-to-Rail Swing -- Low Voltage; Electronics -- Periodicals; Electronics; Periodicals; 621.38105
• DOI: 10.1080/21681724.2017.1357761
• Languages: English
• ISSNs: 2168-1732

Abstract

ABSTRACT: The XOR/XNOR gates are basic building blocks for various digital systems like adders, comparators, multipliers, parity-generator/checker and encryption processor. This paper proposes two realisations each using 2-pass transistors/2-transmission gates and 2-inverters. All the proposed circuits are simulated and compared with existing circuits using Cadence Spectre on both 180 and 90 nm CMOS technology with varying supply rail (from +0.8 V to +1.8 V). The simulation results confirm that the proposed circuits achieve a full rail-to-rail swing, high performance and high noise margin at low voltages. Analytical expressions in support of simulation-results wherever required are included. A typical application in Hamming-code generation is proposed.