A 1.8 µW area-efficient bio-potential amplifier with 90 dB DC offset suppression
文献类型：会议论文
| 作者 | Jinyong Zhang; Shing-Chow Chan; Lei Wang |
| 出版日期 | 2014 |
| 会议名称 | 2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014 |
| 会议地点 | College Station, TX, United states |
| 英文摘要 | An area-efficient and low-power low-noise amplifier with adjustable parameters for bio-potential recording applications is presented. This amplifier replaces traditional analog filters using large AC coupling capacitor with the proposed DC offset suppression block based on Differential Difference Amplifier (DDA) structure, which allows the system to obtain good high pass characterization without using any area-consuming capacitors or resistors. It features configurable gain and bandwidth, which is suitable for various bio-potential applications and massive integration in biomedical devices. More than 90 dB DC offset suppression ratio is achieved in rejecting large DC offset and baseline drift that exist at the skin-electrode interface. The proposed bio-amplifier, designed in a 0.18 μm CMOS process and occupies only 0.027 mm2 silicon area on chip, provides adjustable mid-band gain of 35.5/41.5/47.6/53.6 dB, tunable bandwidth from 0.01 Hz to 10 kHz. The back-annotated simulation results demonstrated the input-referred noise of 5.4 μVrms over 0.01 Hz-10 kHz and the total power dissipation consumed as low as 1.8 μW at 1.2 V power supply. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5912]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | 2014 |
| 推荐引用方式 GB/T 7714 | Jinyong Zhang,Shing-Chow Chan,Lei Wang. A 1.8 µW area-efficient bio-potential amplifier with 90 dB DC offset suppression[C]. 见:2014 IEEE 57th International Midwest Symposium on Circuits and Systems, MWSCAS 2014. College Station, TX, United states. |
入库方式： OAI收割
来源：深圳先进技术研究院
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