Low power CMOS transmitter for biomedical sensing devices
Low power CMOS transmitter for biomedical sensing devices
复制标题
用于生物医学传感设备的低功耗 CMOS 发射器
DOI：
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复制
发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Sawan
中科院分区：
文献类型：
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作者：
Thierry Dupire;Louis;M. Sawan
We describe in this paper two low power transmitters that operates within the 402-405 MHz band allocated for medical implant communication systems (MICS). A frequency modulation scheme is employed. Each one of the transmitters includes a frequency synthesizer, a power amplifier and a matching network. The difference between the two architectures relies on the frequency synthesizer, which uses a new oscillator topology. These circuits are based on the Pierce configuration and use a surface acoustic wave (SAW) resonator. Both versions have been implemented in a 0.1 Hum CMOS process from TSMC and their performances have been compared. With a total power consumption of 2 mW, the radiated power is 0.3 mW allowing a transmission range of about 5 meters.
