Title :
A low power sensor-signal read-out circuit powered by inductive line
Author :
Haider, Mohammad Rafiqul ; Huque, M.A. ; Adeeb, M.A. ; Islam, Syed K. ; Qu, Wenyu ; Ericson, Nance
Author_Institution :
Tennessee Univ., Knoxville, TN
Abstract :
A low-power sensor signal processing circuit for implantable biosensor applications has been proposed. First of all, a read-out circuit is designed to convert the sensor signal into a frequency modulated data signal and then to modulate the data signal with a high frequency carrier for successful transmission. The chip is fabricated using 0.35mum standard CMOS process and power consumption of the chip is registered to be 100muwatt. The circuit performance meets the desired requirements with a supply voltage as low as 1.5V, and it can be powered up by an external inductive link. To mimic the concept of on-chip power transmission by inductive link, a board level design is implemented with very high link efficiency. Test results emulate the simulation results with good agreement and corroborate the efficacy of the designed system
Keywords :
CMOS integrated circuits; biosensors; medical signal processing; readout electronics; 0.35 micron; 100 muW; CMOS process; board level design; external inductive link; frequency modulated data signal; high frequency carrier; implantable biosensor; low-power sensor signal processing circuit; on-chip power transmission; read-out circuit; Biomedical signal processing; Biosensors; CMOS process; Circuit optimization; Energy consumption; Frequency conversion; Frequency modulation; Low voltage; Power transmission; Signal design;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306359
