Design of the ultra low power, low area occupied amplifier for recording biomedical signals in the single Hz bandwidth

Author

Kmon, Piotr ; Grybos, Pawel

Author_Institution

AGH Univ. of Sci. & Technol., Krakow, Poland

fYear

2015

Firstpage

314

Lastpage

317

Abstract

We report on design of the amplifier dedicated to recording very low frequency biomedical signals. As the amplifier is used in multichannel integrated circuit dedicated to biomedical signals acquisition its key requirements are very low power consumption and low area occupation. The amplifier is designed in 180 nm CMOS process, occupies 58×55 μm², and allows to set its bandwidth in the single Hz range. It is supplied from 1.8 V and is characterized by sub μW power consumption. The amplifier is controlled by 6-bit correction DAC to set bandwidth required for a given recordings. The paper presents our former measurement results and describes encountered problems. The design of amplifier is provided with emphasis on its limits. Additionally, the simulation results are also given.

Keywords

CMOS integrated circuits; amplifiers; digital-analogue conversion; integrated circuits; medical signal detection; CMOS process; DAC; amplifier design; biomedical signal recording; biomedical signals acquisition; multichannel integrated circuit; size 180 nm; size 55 mum; size 58 mum; voltage 1.8 V; Bandwidth; Current measurement; Cutoff frequency; Frequency control; Frequency measurement; Leakage currents; ASIC; amplifier; biomedical recordings; leakage currents; multichannel architecture;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed Design of Integrated Circuits & Systems (MIXDES), 2015 22nd International Conference

Conference_Location

Torun

Print_ISBN

978-8-3635-7806-0

Type

conf

DOI

10.1109/MIXDES.2015.7208534

Filename

7208534