An Integrated Low-Power Lock-In Amplifier and Its Application to Gas Detection

被引：23

作者：

Maya-Hernandez, Paulina M. ^{[1
]}

Alvarez-Simon, Luis C. ^{[1
]}

Teresa Sanz-Pascual, Mara ^{[1
]}

Calvo-Lopez, Belen ^{[2
]}

机构：

[1] INAOE, Dept Elect, Luis Enrique Erro 1, Tonantzintla 72840, Puebla, Mexico

[2] I3A, Fac Ciencias, Aragon Inst Engn Res, Grp Elect Design, Zaragoza 50009, Spain

来源：

SENSORS | 2014年 / 14卷 / 09期

关键词：

analog sensor conditioning; lock-in amplifier; phase-sensitive detection; gas sensing; portable applications; CMOS; CIRCUITS; SENSORS;

D O I：

10.3390/s140915880

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This paper presents a new micropower analog lock-in amplifier (LIA) suitable for battery-operated applications thanks to its reduced size and power consumption as well as its operation with single-supply voltage. The proposed LIA was designed in a 0.18 mu m CMOS process with a single supply voltage of 1.8 V. Experimental results show a variable DC gain ranging from 24.7 to 42 dB, power consumption of 417 mu W and integration area of 0.013 mm(2). The LIA performance was demonstrated by measuring carbon monoxide concentrations as low as 1 ppm in dry N-2. The experimental results show that the response to CO of the sensing system can be considerably improved by means of the proposed LIA.

引用

页码：15880 / 15899

页数：20

共 30 条

[1]

Azzolini C, 2008, 2008 INTERNATIONAL CONFERENCE ON DESIGN & TECHNOLOGY OF INTEGRATED SYSTEMS IN NANOSCALE, P123

[2] AN INHERENTLY LINEAR AND COMPACT MOST-ONLY CURRENT DIVISION TECHNIQUE [J].

BULT, K ;

GEELEN, GJGM .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1992, 27 (12) :1730-1735

[3] Micro Cantilever Movement Detection with an Amorphous Silicon Array of Position Sensitive Detectors [J].

Contreras, Javier ;

Costa, Daniel ;

Pereira, Sonia ;

Fortunato, Elvira ;

Martins, Rodrigo ;

Wierzbicki, Rafal ;

Heerlein, Holger ;

Ferreira, Isabel .

SENSORS, 2010, 10 (09) :8173-8184

[4] Low-voltage low-power integrated analog lock-in amplifier for gas sensor applications [J].

D'Amico, A. ;

De Marcellis, A. ;

Di Carlo, C. ;

Di Natale, C. ;

Ferri, G. ;

Martinelli, E. ;

Paolesse, R. ;

Stornelli, V. .

SENSORS AND ACTUATORS B-CHEMICAL, 2010, 144 (02) :400-406

[5] Cobalt Oxide Nanosheet and CNT Micro Carbon Monoxide Sensor Integrated with Readout Circuit on Chip [J].

Dai, Ching-Liang ;

Chen, Yen-Chi ;

Wu, Chyan-Chyi ;

Kuo, Chin-Fu .

SENSORS, 2010, 10 (03) :1753-1764

[6]

De Marcellis A, 2013, 2013 5TH IEEE INTERNATIONAL WORKSHOP ON ADVANCES IN SENSORS AND INTERFACES (IWASI), P121, DOI 10.1109/IWASI.2013.6576057

[7] A low-voltage integrated CMOS analog lock-in amplifier prototype for LAPS applications [J].

Ferri, G ;

De Laurentiis, P ;

D'Amico, A ;

Di Natale, C .

SENSORS AND ACTUATORS A-PHYSICAL, 2001, 92 (1-3) :263-272

[8] Metal Oxide Semi-Conductor Gas Sensors in Environmental Monitoring [J].

Fine, George F. ;

Cavanagh, Leon M. ;

Afonja, Ayo ;

Binions, Russell .

SENSORS, 2010, 10 (06) :5469-5502

[9] A Portable and Autonomous Magnetic Detection Platform for Biosensing [J].

Germano, Jose ;

Martins, Veronica C. ;

Cardoso, Filipe A. ;

Almeida, Teresa M. ;

Sousa, Leonel ;

Freitas, Paulo P. ;

Piedade, Moises S. .

SENSORS, 2009, 9 (06) :4119-4137

[10] A Novel Solid State Non-Dispersive Infrared CO2 Gas Sensor Compatible with Wireless and Portable Deployment [J].

Gibson, Desmond ;

MacGregor, Calum .

SENSORS, 2013, 13 (06) :7079-7103

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