A 32 Input Multiplexed Channel Analog Front-End with Spatial Delta Encoding Technique and Differential Artifacts Compression | IEEE Conference Publication | IEEE Xplore

A 32 Input Multiplexed Channel Analog Front-End with Spatial Delta Encoding Technique and Differential Artifacts Compression


Abstract:

This paper describes a low-noise, low-power and high dynamic range analog front-end intended for sensing neural signals. In order to reduce interface area, a 32-channel m...Show More

Abstract:

This paper describes a low-noise, low-power and high dynamic range analog front-end intended for sensing neural signals. In order to reduce interface area, a 32-channel multiplexer is implemented on circuit input. Furthermore, a spatial delta encoding is proposed to compress the signal range. A differential artifact compression algorithm is implemented to avoid saturation in the signal path, thus enabling reconstruct or suppressing artifacts in digital domain. The proposed design has been implemented using 0.18 μm TSMC technology. Experimental results shows a power consumption per channel of 1.0 μW, an input referred noise of 1.1 μ Vrms regarding the bandwidth of interest and a dynamic range of 91 dB.
Date of Conference: 17-19 October 2019
Date Added to IEEE Xplore: 05 December 2019
ISBN Information:
Print on Demand(PoD) ISSN: 2163-4025
Conference Location: Nara, Japan

References

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