Details

Autor(en) / Beteiligte

• Tseng, Yuhwai
• Ho, Yingchieh
• Kao, Shuoting
• Su, Chauchin

Titel

A 0.09 [Formula Omitted]W Low Power Front-End Biopotential Amplifier for Biosignal Recording

Ist Teil von

• IEEE transactions on biomedical circuits and systems, 2012-10, Vol.6 (5), p.508

Ort / Verlag

New York: The Institute of Electrical and Electronics Engineers, Inc. (IEEE)

Erscheinungsjahr

2012

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• This work presents a biopotential front-end amplifier in which the MOS transistors are biased in subthreshold region with a supply voltage and current of 0.4-0.8 V and 0.23-1.86 [Formula Omitted]A, respectively, to reduce the system power. Flicker noise is then removed using a chopping technique, and differential interference produced by electrode impedance imbalance is suppressed using a Gm-C filter. Additionally, the circuit is fabricated using TSMC 0.18 [Formula Omitted]m CMOS technology with a core area of 0.77[Formula Omitted]0.36 mm[Formula Omitted]. With a minimum supply voltage of 0.4 V, the measured SNR and power consumption of the proposed IC chip are 54.1 dB and 0.09 [Formula Omitted]W , respectively.