Design & Implementation of Approximate 7:2 Compressor Based 16-bit Dadda Multiplier using Verilog
P V V Satyanarayana1, M. Venkanna2, S. Jayasri3, J. Vasavi Kalyani4, B. Ramjee5
1P V V Satyanarayana, Department of Electronics & Communication Engineering, Sri Vasavi Engineering College, Pedatadepalli, Tadepalligudem. (A. P), India
2M. Venkanna, Department of Electronics & Communication Engineering, Sri Vasavi Engineering College, Pedatadepalli, Tadepalligudem. (A.P), India.
3S. Jayasri, Department of Electronics & Communication Engineering, Sri Vasavi Engineering College, Pedatadepalli, Tadepalligudem. (A.P), India.
4J. Vasavi Kalyani, Department of Electronics & Communication Engineering, Sri Vasavi Engineering College, Pedatadepalli, Tadepalligudem. (A.P), India.
5B. Ramjee, Department of Electronics & Communication Engineering, Sri Vasavi Engineering College, Pedatadepalli, Tadepalligudem. (A.P), India
Manuscript received on 27 March 2023 | Revised Manuscript received on 08 March 2023 | Manuscript Accepted on 15 May 2023 | Manuscript published on 30 May 2023 | PP: 39-48 | Volume-12 Issue-1, May 2023 | Retrieval Number: 100.1/ijrte.A75700512123 | DOI: 10.35940/ijrte.A7570.0512123
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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: Nowadays, technology is growing at a rapid rate. Notably, the use of electronics is increasing in various ways, depending on their intended purpose and individual preferences. In this regard, multipliers play a vital role because they enable us to perform complex arithmetic operations involving large numbers more efficiently. Instead of performing a series of addition or subtraction operations, a multiplier allows us to operate a single step within no time, which is the challenge of today’s world. In addition to being more efficient, multipliers also have practical applications in fields such as engineering, computer science, and cryptography, which are also used, for example, in the design of digital circuits and the encryption and decryption of data. Overall, multipliers play a crucial role in mathematics and its applications, serving as essential tools for performing complex computations efficiently. Compressors play a vital role in achieving high-speed multipliers. In error-resilient applications such as Image processing, Multimedia, and Matrix multiplication, approximate computing is used, which provides meaningful results faster with lower power consumption. In previous work, the compressors were designed using full adders, which provide accurate results. The 4:2 and 5:2 approximate compressors are then introduced with 18% delay reduction and ADP reduction up to 52%. The further work concentrated on implementing a 7:2 Approximate Compressor-based multiplier to enhance the performance of multipliers. The proposed design is expected to provide the maximum reduction in area, delay, and power consumption, while achieving a speed improvement compared to the 4:2 and 5:2 compressor-based approximate multipliers.
Keywords: Adder, Multiplier, 4:2 Compressor, 5:2 Compressor, 7:2 Compressor and Verilog.
Scope of the Article: Design and Diagnosis