Ultra-Low-Power Differential ISFET/REFET Readout Circuit
In: ETRI Journal, Jg. 31 (2009-04-09), S. 243-245
Online
unknown
Zugriff:
A novel ultra-low-power readout circuit for a pH-sensitive ion-sensitive field-effect transistor (ISFET) is proposed. It uses an ISFET/reference FET (REFET) differential pair operating in weak-inversion and a simple current-mode metal-oxide semiconductor FET (MOSFET) translinear circuit. Simulation results verify that the circuit operates with excellent common-mode rejection ability and good linearity for a single pH range from 4 to 10, while only 4 nA is drawn from a single 1 V supply voltage.
Titel: |
Ultra-Low-Power Differential ISFET/REFET Readout Circuit
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Autor/in / Beteiligte Person: | Sirimasakul, Silar ; Thanachayanont, Apinunt |
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Zeitschrift: | ETRI Journal, Jg. 31 (2009-04-09), S. 243-245 |
Veröffentlichung: | Wiley, 2009 |
Medientyp: | unknown |
ISSN: | 1225-6463 (print) |
DOI: | 10.4218/etrij.09.0208.0368 |
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