Healthcare demands of a worldwide aging population is increasing at an alarming rate. However, current medical and healthcare systems are unable to meet with the increased demands and are in danger of failing to deliver a much needed respite. With rapid progress in telecommunication technology, development of Wireless Body Networks has emerged as a feasible solution to address such urgent healthcare demands. Although these networks are able to provide real-time health condition monitoring, its adoption and acceptance are still very low. This is due in part to the high power requirement of current networks as well as security concerns in the transmission of personal medical data. To address those concerns, we delivered an low power ASIC solution which is implemented using SMIC 40nm CMOS technology. In this paper, we evaluated the performance of the chip in terms of its low power consumption, low latency and steady performance.