Design of Low Power Preamplifier for Hearing Aid Applications

Authors

  • Richa Neog
  • Naushad Manzoor Laskar
  • Koushik Guha
  • Saurav Nath
  • K.L. Baishnab

Abstract

A microphone preamplifier having low power, low noise and high phase margin for use in hearing aid applications is proposed. The preamplifier uses two-stage topology utilizing self cascode transistors for improving the gain by decreasing the channel length modulation effect and increasing the output impedance. Simulations have been performed in Cadence Virtuoso using SCL 180 nm technology parameters and comparative analysis with other state of art preamplifier design is performed. Simulation result shows that the proposed preamplifier achieves a gain of 20 dB with a bandwidth of 19.2 kHz. The power reported is 9.8 µW which is lower than most of the reported designs which further demonstrates the effectiveness of the proposed design.

Keywords: Preamplifier, low power, high gain, low noise, microphone applications, low frequency

Cite this Article Richa Neog, Naushad Manzoor Laskar, Koushik Guha, Saurav Nath, K.L. Baishnab. Design of Low Power Preamplifier for Hearing Aid Applications. Journal of Advancements in Robotics. 2020; 7(1): 1–7p.

Downloads

Published

2020-05-05

Issue

Vol. 7 No. 1 (2020)

Section

Research Articles

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.