By Topic

A new 2-kV common-mode voltage wide-band isolation amplifier

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Cirant, S. ; Lab. di Fisica del Plasma, Milano, Italy ; Piacentini, I.

Describes a new modulation-demodulation technique for isolation amplifiers, particularly useful for multichannel data acquisition systems. Input and output stages are transformer coupled using an improved version of the amplitude-modulation technique of a symmetric square wave, which requires a simple rectifier bridge for demodulation. Characteristics of the isolation stage obtained in this way are excellent linearity and gain stability, typical of magnetic coupling, and a frequency bandwidth ranging from DC to an upper limit which, at least in principle, is not fixed by the demodulation technique; moreover, common-mode voltages in the kilovolt range are obtainable. Details of an amplifier are given, designed as the analog input stage of a multichannel data acquisition system.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:IM-30 ,  Issue: 2 )