A 1.2 V single supply operational amplifier design using 0.13 μm technology

Abstract

Purpose

This paper aims to present a design of a single power supply, low voltage (1.2) high performance operational amplifier using 0.13 μm technology whose characteristics are superior compared to the other designs available in the literature.

Design/methodology/approach

The authors set out to design an operational amplifier whose characteristics will be superior to the current available designs in the literature. Because of potential applications, a single 1.2 V supply was used. The layout was obtained using Microwind 0.13 μm technology. The design was tested using PSPICE Version 10.0. Various amplifier parameters were obtained and are compared with the other single supply, low voltage amplifiers available in the literature.

Findings

The presented amplifier has better characteristics such as open loop gain, power supply rejection ratio, common mode rejection ratio, etc.

Practical implications

Since, 0.13 μm, 1.2 V technology has become standard in digital VLSI design, there is a great need for high performance operational amplifiers that operate off of 1.2 V for mixed signal applications in such areas as mobile phones.

Originality/value

The presented amplifier has better characteristics compared to few 1.2 V supply voltage amplifiers available in the literature.

Citation

Ramakrishnan, R. and Chaudhry, M.A. (2007), "A 1.2 V single supply operational amplifier design using 0.13 μm technology", Microelectronics International, Vol. 24 No. 2, pp. 46-52. https://doi.org/10.1108/13565360710745593