Name
Abstract | ||
|---|---|---|
A highly linear bridge-based constant voltage and constant current ISFET pH sensor readout circuit is proposed. In this scheme, a compact and low power pH sensor readout circuit is realized by using only one opamp and three MOSFETs without degrading the accuracy. The proposed circuit is implemented using standard CMOS 0.18 mu m technology that shows chemical sensitivity of -37mV/pH, power consumption of 450 nW, and occupies a core area of 70 mu m x 35 mu m. The sensor probe was measured in the range of pH 3 to pH 9 that is required in hydroponics. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.1109/MWSCAS.2017.8053107 | Midwest Symposium on Circuits and Systems Conference Proceedings |
Keywords | Field | DocType |
Biosensor,bridge circuit,constant voltage constant current (CVCC),ion-sensitive field-effect transistor (ISFET),pH sensor | ISFET,Computer science,Constant current,Linearity,Electronic engineering,Electric potential,CMOS,Transistor,Electrical engineering,Operational amplifier,Electrode | Conference |
ISSN | Citations | PageRank |
1548-3746 | 0 | 0.34 |
References | Authors | |
3 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mohammadreza Asgari | 1 | 0 | 0.68 |
| Kye-Shin Lee | 2 | 32 | 14.82 |
| nathan ida | 3 | 0 | 1.35 |