A 5 Mbps 178 µW Completely On-Chip OOK Receiver for Internet-of-Things Applications

Abstract

Abstract Internet-of-things (IoT) devices has a huge demand for power sources. For sustainability, energy harvesting technologies are currently pursued as a potential power source for these IoT devices. In certain applications where continuous operation mode is required, these power sources get exhausted soon. Most of the power is dissipated during wireless communication of IoT devices. As a result, it is crucial to achieve low-power solutions for high-speed data communications. Here we show a fully integrated radio frequency (RF) receiver frontend with unique block-level circuit design techniques to decode high data rate On-Off Keying (OOK) modulated signals in the 2.4 GHz Industrial, Scientific, and Medical (ISM) band. As a result, this work provides a compact design while avoiding bulky external components such as BAW resonators, crystal oscillators, etc. The proposed OOK receiver achieves a sensitivity of -62 dBm/-67 dBm while consuming 178 µW/119 µW power for a 5 Mbps/1 Mbps data rate.