TY - GEN
T1 - A low-power CMOS BFSK transceiver for health monitoring systems
AU - Kim, Sungho
AU - Lepkowski, William
AU - Wilk, Seth J.
AU - Thornton, Trevor
AU - Bakkaloglu, Bertan
PY - 2011
Y1 - 2011
N2 - A CMOS low-power transceiver for implantable and external health monitoring devices operating in the MICS band is presented. The LNA core has an integrated mixer in a folded configuration to reuse the bias current, allowing high linearity with a low power supply levels. The baseband strip consists of a pseudo differential MOS-C band-pass filter achieving demodulation of 150kHz-offset BFSK signals. An all digital frequency-locked loop is used for LO generation in the RX mode and for driving a class AB power amplifier in the TX mode. The MICS transceiver is designed and fabricated in a 0.18μm 1-poly, 6-metal CMOS process. The sensitivities of 70dBm and 98dBm were achieved with NF of 40dB and 11dB at the data rate of 100kb/s while consuming only 600μW and 1.5mW at 1.2V and 1.8V, respectively. The BERs are less than 10 -3 at the input powers of -70dBm at 1.2V and -98dBm at 1.8V at the data rate of 100kb/s. Finally, the output power of the transmitter is 0dBm for a power consumption of 1.8mW.
AB - A CMOS low-power transceiver for implantable and external health monitoring devices operating in the MICS band is presented. The LNA core has an integrated mixer in a folded configuration to reuse the bias current, allowing high linearity with a low power supply levels. The baseband strip consists of a pseudo differential MOS-C band-pass filter achieving demodulation of 150kHz-offset BFSK signals. An all digital frequency-locked loop is used for LO generation in the RX mode and for driving a class AB power amplifier in the TX mode. The MICS transceiver is designed and fabricated in a 0.18μm 1-poly, 6-metal CMOS process. The sensitivities of 70dBm and 98dBm were achieved with NF of 40dB and 11dB at the data rate of 100kb/s while consuming only 600μW and 1.5mW at 1.2V and 1.8V, respectively. The BERs are less than 10 -3 at the input powers of -70dBm at 1.2V and -98dBm at 1.8V at the data rate of 100kb/s. Finally, the output power of the transmitter is 0dBm for a power consumption of 1.8mW.
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U2 - 10.1109/BioCAS.2011.6107751
DO - 10.1109/BioCAS.2011.6107751
M3 - Conference contribution
AN - SCOPUS:84862963420
SN - 9781457714696
T3 - 2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011
SP - 157
EP - 160
BT - 2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011
T2 - 2011 IEEE Biomedical Circuits and Systems Conference, BioCAS 2011
Y2 - 10 November 2011 through 12 November 2011
ER -