SEMICONDUCTOR INTEGRATED CIRCUITS

CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission

Wu Zhaohui, Zhang Xu, Liang Zhiming and Li Bin

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Abstract: A new BPSK demodulator was presented. By using a clock multiplier with very simple circuit structure to replace the analog multiplier in the traditional BPSK demodulator, the circuit structure of the demodulator became simpler and hence its power consumption became lower. Simpler structure and lower power will make the designed demodulator more suitable for use in an internal single chip design for a wireless implantable neural recording system. The proposed BPSK demodulator was implemented by Global Foundries 0.35 μm CMOS technology with a 3.3 V power supply. The designed chip area is only 0.07 mm2 and the power consumption is 0.5 mW. The test results show that it can work correctly.

Key words: CMOS integrated circuits

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    Received: 20 August 2015 Revised: 31 December 2011 Online: Published: 01 May 2012

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      Wu Zhaohui, Zhang Xu, Liang Zhiming, Li Bin. CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission[J]. Journal of Semiconductors, 2012, 33(5): 055005. doi: 10.1088/1674-4926/33/5/055005 Wu Z H, Zhang X, Liang Z M, Li B. CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission[J]. J. Semicond., 2012, 33(5): 055005. doi: 10.1088/1674-4926/33/5/055005.Export: BibTex EndNote
      Citation:
      Wu Zhaohui, Zhang Xu, Liang Zhiming, Li Bin. CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission[J]. Journal of Semiconductors, 2012, 33(5): 055005. doi: 10.1088/1674-4926/33/5/055005

      Wu Z H, Zhang X, Liang Z M, Li B. CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission[J]. J. Semicond., 2012, 33(5): 055005. doi: 10.1088/1674-4926/33/5/055005.
      Export: BibTex EndNote

      CMOS implementation of a low-power BPSK demodulator for wireless implantable neural command transmission

      doi: 10.1088/1674-4926/33/5/055005
      Funds:

      The National Basic Research Program of China (973 Program)

      The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

      • Received Date: 2015-08-20
      • Accepted Date: 2011-10-24
      • Revised Date: 2011-12-31
      • Published Date: 2012-04-11

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