TY - GEN
T1 - An ASK demodulator for data telemetry in biomedical application
AU - Liang, Bin
AU - Yang, Zhi
AU - Liu, Wentai
PY - 2009
Y1 - 2009
N2 - This paper presents a demodulator design for Amplitude Shift Keying (ASK) based wireless telemetry system in biomedical application. It supports up to 300Kbits per second (bps) data rate and detects envelope with modulation index of 1% or more. The design includes a single-to-differential OTA, a current mode full-wave rectifier, a log-domain peak detector, a variable-gain amplifier and a comparator. The rising and falling time constants of our design are tunable through varying off-chip components to support a wide range of modulation indexes and data rate. The circuit blocks are designed and simulated in Taiwan Semiconductor Manufacturing Company (TSMC) 0.18μm process and occupying 120x420μm2. The power consumption is 1mW with 1.8V supply voltage.
AB - This paper presents a demodulator design for Amplitude Shift Keying (ASK) based wireless telemetry system in biomedical application. It supports up to 300Kbits per second (bps) data rate and detects envelope with modulation index of 1% or more. The design includes a single-to-differential OTA, a current mode full-wave rectifier, a log-domain peak detector, a variable-gain amplifier and a comparator. The rising and falling time constants of our design are tunable through varying off-chip components to support a wide range of modulation indexes and data rate. The circuit blocks are designed and simulated in Taiwan Semiconductor Manufacturing Company (TSMC) 0.18μm process and occupying 120x420μm2. The power consumption is 1mW with 1.8V supply voltage.
UR - http://www.scopus.com/inward/record.url?scp=77950979404&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77950979404&partnerID=8YFLogxK
U2 - 10.1109/IEMBS.2009.5332396
DO - 10.1109/IEMBS.2009.5332396
M3 - Conference contribution
C2 - 19963510
AN - SCOPUS:77950979404
SN - 9781424432967
T3 - Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
SP - 1561
EP - 1564
BT - Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society
PB - IEEE Computer Society
T2 - 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
Y2 - 2 September 2009 through 6 September 2009
ER -