TY - GEN
T1 - A sigma delta ISFET readout circuit for Lab-on-Chip applications
AU - Nabovati, Ghazal
AU - Ghafarzadeh, Ebrahim
AU - Awwad, Falah
AU - Sawan, Mohamad
PY - 2013
Y1 - 2013
N2 - This paper presents a new ISFET readout interface circuitry for Lab-on-Chip applications. The proposed circuit features a dedicated DC-input sigma delta modulator converting the detected charge to 1-bit digital series. The proposed circuit, designed in 0.35-μm CMOS technology, offers a biologically relevant, high pH dynamic range of 5 to 9 and high sensitivity of 800mV/pH. We demonstrate the features of the proposed circuit by simulations and we discuss the advantage of this low complexity circuit for the measurement of pH using an array of ISFETs suitable for a variety of chemical and biological applications.
AB - This paper presents a new ISFET readout interface circuitry for Lab-on-Chip applications. The proposed circuit features a dedicated DC-input sigma delta modulator converting the detected charge to 1-bit digital series. The proposed circuit, designed in 0.35-μm CMOS technology, offers a biologically relevant, high pH dynamic range of 5 to 9 and high sensitivity of 800mV/pH. We demonstrate the features of the proposed circuit by simulations and we discuss the advantage of this low complexity circuit for the measurement of pH using an array of ISFETs suitable for a variety of chemical and biological applications.
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U2 - 10.1109/NEWCAS.2013.6573675
DO - 10.1109/NEWCAS.2013.6573675
M3 - Conference contribution
AN - SCOPUS:84883485138
SN - 9781479906185
T3 - 2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013
BT - 2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013
T2 - 2013 IEEE 11th International New Circuits and Systems Conference, NEWCAS 2013
Y2 - 16 June 2013 through 19 June 2013
ER -