An Integrated Circuit for EEG Acquisition System with Programmable Gain Amplifier in 0.18μm Technology
نویسندگان
چکیده
This work describes a 0.18μm CMOS implementation of an EEG acquisition system with programmable gain amplifier. Gain of the amplifier is digitally programmable from 35.09 dB to 62.55 dB by using 6 bits digital input. EEG input signals are of the range of few micro-voltage. Hence a high gain operational transconductance amplifier with gain of 62.83 dB is designed. Two 22:1 multiplexers with 5 selection lines are used in this design for input selection from electrodes connected to scalp. The proposed amplifier and multiplexer have been tested for the EEG signals and their performance is reported at operating voltage of 1.8 volts. This design can be used in an integrated circuit for EEG front end for monitoring and diagnosis.
منابع مشابه
An Integrated Circuit for Eeg Acquisition System in 0.18μm Technology
An EEG acquisition system using 0.18μm technology is proposed. EEG input signals are of the range of few micro-voltage. Hence a high gain operational transconductance amplifier with gain of 62.45dB is designed for the acquisition system. The proposed amplifier and multiplexer have been tested for the EEG signals and their performance is reported at operating voltage of 1.8 volts. This design ca...
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