Title :
A chopper stabilized instrumentation amplifier with dual DC cancellation servo loops for biomedicai applications
Author :
Dong Han ; Yuanjin Zheng
Author_Institution :
IC Design Centre of Excellence, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A 1V 65nm 4.3μW differential difference amplifier based instrumentation amplifier for biomedical applications has been presented. To eliminate the DC baseline drift of the biomedical signals, novel and efficient fine-coarse DC offset cancellation servo loops have been proposed. Measured results show that the proposed instrumentation amplifier achieves 0.8μVrms input referred noise from 0.5Hz to 200Hz with inband gain of 65.5V/V and noise efficiency factor of 5.7 for electrocardiograph signal monitoring.
Keywords :
biomedical electronics; differential amplifiers; electrocardiography; instrumentation amplifiers; DC baseline drift elimination; biomedical application; biomedical signals; chopper-stabilized instrumentation amplifier; differential difference amplifier-based instrumentation amplifier; dual-DC cancellation servo loops; electrocardiograph signal monitoring; fine-coarse DC offset cancellation servo loops; noise efficiency factor; power 4.3 muW; size 65 nm; voltage 0.8 muV; voltage 1 V;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian
Conference_Location :
Kobe
DOI :
10.1109/IPEC.2012.6522624
