CMOS Microsystems – Bio Engineering Laboratory

<p>Feb 06, 2016 07:52 PM</p>

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CMOS Microsystems...</p>

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see Key advantages...</p>

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on-chip signal conditioning &nbsp;(close to the source) enables readout of low-level signals from very small transducers. &nbsp;</p>

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analog to digital conversion done on the chip, so that only robust digital signals are transmitted.</p>

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on-chip multiplexing: &nbsp;acquire signals from thousands of small transducers vis a few off chip connections.</p>

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(Bob: &nbsp;note that the retina itself is doing something similar, ie &nbsp;"on-chip signal conditioning,

multiplexing and A to D conversion!!)</p>

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MEA = multielectrode array.</p>

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MEAs are usually circuitless chips &nbsp;(in contrast to these)...</p>

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weak neuronal signals can be conditioned right at the trode and

ADC performed so that only stable digital signals are xmited.</p>

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we focus on HD = high density arrays of > 11K trodes for subcellular resolution.</p>

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