JELE_V6_N1_RP3 Rashika Anurag Neeta Pandey Rajeshwari Pandey Ritu Vijay Journal on Electronics Engineering 2249 – 0760 6 1 21 27 Operational Transresistance Amplifier (OTRA), Full-wave Rectifier, Current-mode Processing Analog integrated circuit design is receiving a tremendous boost due to the development and application of Current- Mode (CM) processing. Application of CM techniques provides wider bandwidth; which is virtually independent of the closed loop gain, greater linearity and large dynamic range. The Operational Transresistance Amplifier (OTRA) has emerged as an effective alternate current mode analog building block. It is a high gain current input, voltage output amplifier and also free from parasitic input capacitances and resistances as its input terminals are virtually grounded thus eliminating response limitations due to parasitics. OTRA is used as an analog building block for realizing a number of circuits having applications in signal processing and generation. Precise rectification is an important requirement in instrumentation and measurement circuits and is addressed in this paper. Traditionally, diodes are used to build rectifiers however; rectification is not permitted below a voltage of ∼ 0.7 V for silicon and ∼ 0.3 V for germanium diodes due to cutin voltage. For low voltage applications, Operational Amplifiers (OPAMP) with diode connected in feedback is used which prevents the fast switching of the diodes in high frequency range due to slew rate limitation of OPAMP. This paper aims at presenting an OTRA based FWR which is suitable for low voltage rectification. The functionality of the proposed circuit is validated through SPICE simulation for which OTRA is realized using Current Feedback Operational Amplifier (CFOA).The simulation results are found in close agreement to the theoretical results. September – November 2015 Copyright © 2015 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3682