Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Electrical & Computer Engineering |
Creator |
Harrison, Reid R.; Charles, Cameron Townley |
Title |
Floating gate common mode feedback circuit for low noise amplifiers |
Date |
2003-01-01 |
Description |
Most low noise amplifier designs focus on eliminating sources of noise that are intrinsic 1.0 the amplifier (thermal noise, Ilfnoise). As integrated (circuit design moves increasingly towards mixed signal implementations, the design of low-noise malog amplifiers must be re-evaluated to consider the switching noise generated by on-chip digital circuitry. We designed three fully differential versions of a previously reported single-ended low-noise amplifier for biomedical applications. Each design uses a different common mode feedback (CMFB) circuit. The first uses a standard continuous-time CMFB circuit, the second uSes a switched capacitor CMFB circuit, and the third uses a novel floating gate CMFB circuit. A test chip he3 been fabricated in a 1.5 pm CMOS process. Tha fully differential amplifiers outperform the single-ended amplifier in the presence of switching noise. The amplifier with the floating gate CMFB circuit has the lowest total harmonic distortion over the critical range and exhibits the smallest fluctuation in the common mode output level. |
Type |
Text |
Publisher |
Institute of Electrical and Electronics Engineers (IEEE) |
Journal Title |
IEEE Southwest Symposium on Mixed-Signal Design |
First Page |
180 |
Last Page |
185 |
Subject |
Floating gate; Common mode feedback circuit; Low noise amplifiers |
Subject LCSH |
Integrated circuits; Metal oxide semiconductors; Microelectrodes |
Language |
eng |
Bibliographic Citation |
Charles, C., & Harrison, R. R. (2003). Floating gate common mode feedback circuit for low noise amplifiers. of the 2003 IEEE Southwest Symposium on Mixed-Signal Design (SSMSD 2003), 180-5. |
Rights Management |
(c) 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
Format Medium |
application/pdf |
Format Extent |
408,449 bytes |
Identifier |
ir-main,13997 |
ARK |
ark:/87278/s6fb5mbt |
Setname |
ir_uspace |
ID |
704881 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6fb5mbt |