A low-power digital ASIC for detecting heart-rate and missing beat

This paper presents a low power Application Specific Integrated Circuit (ASIC) to detect the heart-rate and missing beats. This design is implemented without using any computationally intensive operation. This approach has resulted in a total power consumption of 318nW for the entire circuit at a clock frequency of 1 KHz and a supply voltage of 5V. The ASIC occupies an area of 785μm by 744μm and is implemented in a 0.5μm AMI technology. The low power consumption of the ASIC and its small size make it possible to utilize it on an implantable pacemaker chip that can be powered wirelessly with electromagnetic waves.