TY - GEN
T1 - An efficient chopper amplifier, using a switched Gm-C filter technique
AU - Arnaud, Alfredo
PY - 2005
Y1 - 2005
N2 - In this paper, a chopper amplifier built with Gm-C filters that are alternatively turned on and off will be introduced. First, a theoretical framework to estimate the output of a generic switched continuous-time filter in the frequency domain is presented. This study is later employed to determinate the behaviour of the chopper amplifier: transfer function, and noise. Final conclusions and preliminary measurements are presented at the end. Due to its simplicity, the circuit is suitable for example in the field of implantable nerve signal amplification, where ultra low noise and minimal power consumption are mandatory.
AB - In this paper, a chopper amplifier built with Gm-C filters that are alternatively turned on and off will be introduced. First, a theoretical framework to estimate the output of a generic switched continuous-time filter in the frequency domain is presented. This study is later employed to determinate the behaviour of the chopper amplifier: transfer function, and noise. Final conclusions and preliminary measurements are presented at the end. Due to its simplicity, the circuit is suitable for example in the field of implantable nerve signal amplification, where ultra low noise and minimal power consumption are mandatory.
KW - Analog design
KW - CMOS
KW - Low-power
UR - http://www.scopus.com/inward/record.url?scp=46449121324&partnerID=8YFLogxK
U2 - 10.1109/SBCCI.2005.4286859
DO - 10.1109/SBCCI.2005.4286859
M3 - Contribución a la conferencia
AN - SCOPUS:46449121324
SN - 1595931740
SN - 9781595931740
T3 - SBCCI 2005 - 18th Symposium on Integrated Circuits and Systems Design
SP - 213
EP - 218
BT - SBCCI 2005 - 18th Symposium on Integrated Circuits and Systems Design
T2 - SBCCI 2005 - 18th Symposium on Integrated Circuits and Systems Design
Y2 - 4 September 2005 through 7 September 2005
ER -