A 0.45-V Low-Power OOK/FSK RF Receiver in 0.18 mu m CMOS Technology for Implantable Medical Applications

作者：Hsieh Jian Yu; Huang Yi Chun; Kuo Po Hung; Wang Tao^*; Lu Shey Shi

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2016, 63(8): 1123-1130.

DOI：10.1109/TCSI.2016.2589338

• Forward body biasing
• low-power
• OOK/FSKRF receiver
• subharmonic mixing
• wake-up mechanism

A 0.45-V low-power 0.18 mu m CMOS OOK/FSK RF receiver for implantable medical applications is proposed. The receiver utilizes a wake-up mechanism to adjust its power consumption automatically by reading the amplitude of the input wireless OOK/FSK modulated RF signal directly. No additional wireless wake-up commands are required. Such a normally-off and instant-on scheme reduces the power consumption of this receiver significantly. The power consumption is 129 mu W in sleep mode and 352 mu W in wake-up mode. Other techniques, such as third-order-harmonic cancellation, subharmonic mixing, and forward body biasing are also adopted for better linearity, higher LO-to-RF isolation, and lower VDD, respectively. The measurement results show that the proposed receiver consumes only 2.6 nJ/bit (OOK) and 1 nJ/bit (FSK) to achieve the sensitivities of -55 dBm (OOK) and -53.5 dBm (FSK) in BER < 10(-3) constraint. The proposed receiver is designed for low-power and short-distance MICS band applications.

• 出版日期2016-8
• 单位长春大学