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Figure 1. Block diagram of a quad-ferential amplifier. Design and Analysis of a Quad-ferential Ampilifer
 

Summary: Figure 1. Block diagram of a quad-ferential amplifier.
Design and Analysis of a Quad-ferential Ampilifer
Tinna Marie Rookmaaker, Moon Seok Kim and Yong-Bin Kim
Department of Electrical and Computer Engineering
Northeastern University
Boston, MA, U.S.A
Tina.Rookmaaker@analog.com, moor27@coe.neu.edu and ybk@ece.neu.edu
Abstract--This paper presents a design and analysis of a quad-
ferential amplifier. A quad-ferential amplifier consists of four
inputs, four outputs, and a pin which controls the output
common-mode voltage. It is similar to the differential amplifier
in that it amplifies differences and rejects overall input
common-mode. The transfer function shows that quad-ferential
amplifier requires symmetry of feedback and gain resistors to
approach its ideal behavior. Using a graphical approach the
amplifier is compensated to drive a capacitive load of 50 . The
output current drive is designed for minimum load resistance of
. Statistical models are utilized in performing Monte Carlo
simulations to evaluate offset voltage and common-mode
rejection. These simulations show mean offset voltage of

  

Source: Ayers, Joseph - Marine Science Center & Department of Biology, Northeastern University

 

Collections: Engineering