Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Bidirectional Current-Mirror Based Potentiostat Using a Slice-Based
  Class-AB Amplifier   A pico-ampere sensitive electrochemical sensor signal acquisition chain
consisting of a multi-channel bidirectional current-mirror based potentiostat
and a multiplexed current-input delta-sigma ($\Delta \Sigma$) ADC is presented.
Slice-based class-AB amplifiers with output stage current replication using
reconfigurable current-mirrors enable bidirectional current sensing over a
range of five decades. The replicated current is digitized by the ADC. The
proposed circuit achieves a minimum detectable current of 91.7 pA, resulting in
a dynamic range of 147 dB for sensor currents up to $\pm$1 mA. The potentiostat
is operated at a 3 V supply, the ADC at 1.5 V. The static power consumption of
a single interface channel depends on the number of active amplifier slices and
is between 14.1 $\mu$W and 39.3 $\mu$W. The highest power efficiency among
similar systems and the low voltage headroom consumption of less than 500 mV
enables a versatile use of the interface for multiple sensing applications.

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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th