A bulk-driven ISFET-based chemical mixer
A bulk-driven ISFET-based chemical mixer
In this work the concept of the chemical mixer for comparing the pH of two aqueous solutions is introduced. Ionic concentrations are sensed via a pair of ISFETs, which are then translated into signals with frequencies that correspond to the pH values of the solutions. Using the bulk-driven single balanced topology, the number of transistors is significantly reduced, making it suitable for applications where a low supply voltage and low power consumption are essential. Finally, it is demonstrated that the output frequency of the mixer depends on the ΔpH of the solutions under test.
134-137
Zain, W.S.W.
9f3b61a6-82e6-4a45-855c-2f88964aae3d
Prodromakis, T.
d58c9c10-9d25-4d22-b155-06c8437acfbf
Toumazou, C.
52728165-8fe5-4c54-9fad-e9ccc4423dd6
November 2010
Zain, W.S.W.
9f3b61a6-82e6-4a45-855c-2f88964aae3d
Prodromakis, T.
d58c9c10-9d25-4d22-b155-06c8437acfbf
Toumazou, C.
52728165-8fe5-4c54-9fad-e9ccc4423dd6
Zain, W.S.W., Prodromakis, T. and Toumazou, C.
(2010)
A bulk-driven ISFET-based chemical mixer.
IEEE Biomedical Circuits and Systems Conference (BioCAS), Paphos, Cyprus.
03 - 05 Nov 2010.
.
(doi:10.1109/BIOCAS.2010.5709589).
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Conference or Workshop Item
(Other)
Abstract
In this work the concept of the chemical mixer for comparing the pH of two aqueous solutions is introduced. Ionic concentrations are sensed via a pair of ISFETs, which are then translated into signals with frequencies that correspond to the pH values of the solutions. Using the bulk-driven single balanced topology, the number of transistors is significantly reduced, making it suitable for applications where a low supply voltage and low power consumption are essential. Finally, it is demonstrated that the output frequency of the mixer depends on the ΔpH of the solutions under test.
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Published date: November 2010
Venue - Dates:
IEEE Biomedical Circuits and Systems Conference (BioCAS), Paphos, Cyprus, 2010-11-03 - 2010-11-05
Organisations:
Electronic & Software Systems
Identifiers
Local EPrints ID: 351560
URI: http://eprints.soton.ac.uk/id/eprint/351560
PURE UUID: 08de8431-93d8-4bb9-806f-51dcb209bc4f
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Date deposited: 29 Apr 2013 09:03
Last modified: 14 Mar 2024 13:41
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Contributors
Author:
W.S.W. Zain
Author:
T. Prodromakis
Author:
C. Toumazou
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