WO2009070003A3 - An analog read out interface circuit for ion sensor - Google Patents
An analog read out interface circuit for ion sensor Download PDFInfo
- Publication number
- WO2009070003A3 WO2009070003A3 PCT/MY2009/000014 MY2009000014W WO2009070003A3 WO 2009070003 A3 WO2009070003 A3 WO 2009070003A3 MY 2009000014 W MY2009000014 W MY 2009000014W WO 2009070003 A3 WO2009070003 A3 WO 2009070003A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- interface circuit
- out interface
- analog read
- read out
- ion
- Prior art date
Links
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 abstract 1
- 230000003071 parasitic effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/414—Ion-sensitive or chemical field-effect transistors, i.e. ISFETS or CHEMFETS
- G01N27/4148—Integrated circuits therefor, e.g. fabricated by CMOS processing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
The present invention relates to an analog read out interface circuit for hydrogen ion sensors, an more particularly for ion-sensitive field transistor pH sensor. An analog read-out interface circuit for ion sensor, comprising a constant voltage constant current circuit; a tunable temperature sensor based on CMOS parasitic bipolar transistor; a summation circuit; characterised in that the analog read-out interface circuit is operable with an option to adjust temperature coefficient (Tc) of the tunable temperature sensor and output voltage level.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI20072136 | 2007-11-30 | ||
| MYPI20072136 | 2007-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009070003A2 WO2009070003A2 (en) | 2009-06-04 |
| WO2009070003A3 true WO2009070003A3 (en) | 2009-10-15 |
Family
ID=40679173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MY2009/000014 WO2009070003A2 (en) | 2007-11-30 | 2009-01-13 | An analog read out interface circuit for ion sensor |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2009070003A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344840B (en) * | 2013-07-03 | 2015-05-20 | 东北大学 | Method and device for conducting absolute measurement on electrical conductivity of solution and high-temperature melt |
| AU2018235130B2 (en) | 2017-03-15 | 2023-12-07 | Oxford Biomedica (Uk) Limited | Method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691167A (en) * | 1983-08-24 | 1987-09-01 | Sentron V.O.F. | Apparatus for determining the activity of an ion (pIon) in a liquid |
| US6002244A (en) * | 1998-11-17 | 1999-12-14 | Impala Linear Corporation | Temperature monitoring circuit with thermal hysteresis |
| US20040077116A1 (en) * | 2002-10-21 | 2004-04-22 | Hsiung Stephen S. K. | Method for fabricating a monolithic chip including pH, temperature and photo-intensity multi-sensors and a readout circuit |
| US20070089988A1 (en) * | 2005-10-21 | 2007-04-26 | Wen-Yaw Chung | Electronic circuit for ion sensor with body effect reduction |
-
2009
- 2009-01-13 WO PCT/MY2009/000014 patent/WO2009070003A2/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691167A (en) * | 1983-08-24 | 1987-09-01 | Sentron V.O.F. | Apparatus for determining the activity of an ion (pIon) in a liquid |
| US6002244A (en) * | 1998-11-17 | 1999-12-14 | Impala Linear Corporation | Temperature monitoring circuit with thermal hysteresis |
| US20040077116A1 (en) * | 2002-10-21 | 2004-04-22 | Hsiung Stephen S. K. | Method for fabricating a monolithic chip including pH, temperature and photo-intensity multi-sensors and a readout circuit |
| US20070089988A1 (en) * | 2005-10-21 | 2007-04-26 | Wen-Yaw Chung | Electronic circuit for ion sensor with body effect reduction |
Non-Patent Citations (2)
| Title |
|---|
| WEN-YAW CHUNG ET AL.: "A signal processing ASIC for ISFET-based chemical sensors", MICROELECTRONICS JOURNAL, vol. 35, 31 December 2004 (2004-12-31), pages 667 - 675 * |
| YUAN-LUNG CHIN ET AL.: "A novel pH sensitive ISFET with on chip temperature sensing using CMOS standard process", SENORS AND ACTUATORS B, vol. 76, 31 December 2001 (2001-12-31), pages 582 - 593 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009070003A2 (en) | 2009-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2012003380A3 (en) | Array column integrator | |
| TW200746233A (en) | Magnetic tunnel junction temperature sensors and methods | |
| FR2922683B1 (en) | BOLOMETRIC PIXEL MATRIX THERMAL IMAGE SENSOR AND SPATIAL NOISE REDUCTION METHOD. | |
| TW200718001A (en) | Chopper amplifier circuit and semiconductor device | |
| ATE549633T1 (en) | INTEGRATED SENSOR ARRAY WITH OFFSET REDUCTION | |
| TW200710629A (en) | Constant current circuit | |
| TW200802873A (en) | Thermally stable semiconductor power device | |
| GB2484442B (en) | Process, voltage, and temperature sensor | |
| TW200723691A (en) | Semiconductor integrated circuit apparatus and electronic apparatus | |
| MY157390A (en) | Switching circuit and semiconductor module | |
| WO2007139648A3 (en) | Method for improving the precision of a temperature-sensor circuit | |
| WO2000037892A3 (en) | Linear temperature sensor | |
| RU2011141857A (en) | METHOD FOR CONTINUOUS MEASUREMENT OF CONCENTRATION OF SUBSTRATE | |
| US20190154473A1 (en) | Readout circuit for sensor and readout method thereof | |
| TW200709221A (en) | Semiconductor memory device | |
| WO2009070003A3 (en) | An analog read out interface circuit for ion sensor | |
| TW200614429A (en) | Semiconductor integrated circuit device | |
| WO2005109143A3 (en) | Control system for a power supply | |
| KR20130006955A (en) | A temperature sensor with low power, high precision, and wide temperature range | |
| EP1482390A3 (en) | High temperature coefficient MOS bias generation circuit | |
| TW200733545A (en) | Operational amplifier | |
| TW200716975A (en) | Ion sensing circuit with body effect reduction technique | |
| DK1909086T3 (en) | Automatic thermometer activation system | |
| WO2009088278A3 (en) | Temperature compensation method for ion sensor using vt extractor circuit | |
| TWI474327B (en) | Dual mode reading device and circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09700044 Country of ref document: EP Kind code of ref document: A2 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 09700044 Country of ref document: EP Kind code of ref document: A2 |