A 76db 828nv/√Hz Low Noise Bio Signal OTA For Neural Signal Recording Applications

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    The low frequency, low amplitude biomedical signals which created a tremendous demand amongst clinicians and neuroscience researchers are to be amplified in the range of millihertz to kilohertz by rejecting the dc offsets. This research article presents a Bio Signal OTA (Bio-OTA) with 76dB gain, 828nV/ 16Hz"> noise and 390nW power is designed in 90nm CMOS process and also a brief survey on the different types of OTAs used for neuro recording applications is discussed. The Wilson current mirror is used to design 1volt Bio-OTA. The Common mode rejection ratio (CMRR) is obtained as 75dB, power supply rejection ratio (PSRR) is above 88dB and gain bandwidth product (GBW) is 223MHz.

     

     


  • Keywords


    Bio-OTA, Brain Machine Interface, Biopotentials, Neural recording Amplifier, OTA.

  • References


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Article ID: 14484
 
DOI: 10.14419/ijet.v7i3.3.14484




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