Title :
CMOS front-end amplifier dedicated to monitor very low amplitude signal from implantable sensors
Author :
Hu, Yamu ; Sawan, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ecole Polytech. de Montreal, Que., Canada
Abstract :
Describes a low-noise, low-power and low-voltage amplifier dedicated to very low amplitude signal acquisition from implantable electronic devices. Low noise and low DC offset are realized by means of chopper stabilization (CHS) technique. In addition, due to adding a rail to rail input stage, low power supply (1.8V) and wide common mode input range (0-1.8V) are achieved. It features a gain of 51dB and a bandwidth of 4.5 kHz. The equivalent input noise is about 56nv/√(Hz)
Keywords :
CMOS analogue integrated circuits; biomedical electronics; choppers (circuits); low-power electronics; operational amplifiers; prosthetics; 0 to 1.8 V; 4.5 kHz; 51 dB; CMOS front-end amplifier; DC offset; biomedical applications; chopper stabilization technique; common mode input range; equivalent input noise; implantable sensors; low-power amplifier; rail to rail input stage; very low amplitude signal acquisition; Bandwidth; Biomedical measurements; Choppers; Frequency; Low-noise amplifiers; Monitoring; Noise level; Power supplies; Rail to rail inputs; Voltage;
Conference_Titel :
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on
Conference_Location :
Lansing, MI
Print_ISBN :
0-7803-6475-9
DOI :
10.1109/MWSCAS.2000.951646
