TY - GEN
T1 - Fully digital low-power self-calibrating BPSK demodulator for implantable biosensors
AU - Nabovati, Ghazal
AU - Ghafar-Zadeh, Ebrahim
AU - Awwad, Falah
AU - Sawan, Mohamad
PY - 2012
Y1 - 2012
N2 - In this paper we present a novel all digital binary phase shift keying (BPSK) demodulator dedicated implantable biosensor. This demodulator offers the advantages of ultra-low power and low complexity structure which are very essential to develop wireless miniaturized implantable devices. As the continuation of our research approach to implement a glucose sensor implanted under skin, herein, we address the design and analysis of a demodulator integrated in a CMOS chip along with other required building blocks. In order to minimize the effect of transmitter frequency changes and to enhance the circuit robustness a digital self-calibration technique is also proposed. Simulation results show that the demodulator can tolerate a relatively large frequency shift of at least ±80% around the centre frequency in all process corners. The power consumption of the demodulator at a data transmission rate of 16 Mbps and a supply voltage of 1.8 V is as low as 27μW.
AB - In this paper we present a novel all digital binary phase shift keying (BPSK) demodulator dedicated implantable biosensor. This demodulator offers the advantages of ultra-low power and low complexity structure which are very essential to develop wireless miniaturized implantable devices. As the continuation of our research approach to implement a glucose sensor implanted under skin, herein, we address the design and analysis of a demodulator integrated in a CMOS chip along with other required building blocks. In order to minimize the effect of transmitter frequency changes and to enhance the circuit robustness a digital self-calibration technique is also proposed. Simulation results show that the demodulator can tolerate a relatively large frequency shift of at least ±80% around the centre frequency in all process corners. The power consumption of the demodulator at a data transmission rate of 16 Mbps and a supply voltage of 1.8 V is as low as 27μW.
UR - http://www.scopus.com/inward/record.url?scp=84867319662&partnerID=8YFLogxK
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U2 - 10.1109/MWSCAS.2012.6292030
DO - 10.1109/MWSCAS.2012.6292030
M3 - Conference contribution
AN - SCOPUS:84867319662
SN - 9781467325264
T3 - Midwest Symposium on Circuits and Systems
SP - 354
EP - 357
BT - 2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
T2 - 2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
Y2 - 5 August 2012 through 8 August 2012
ER -