A New Design of Fault Tolerant Comparator

In this paper we have presented a new design of fault tolerant comparator with a fault free hot spare. The aim of this design is to achieve a low overhead of time and area in fault tolerant comparators. We have used hot standby technique to normal operation of the system without interrupting and dynamic recovery method in fault detection and correction. The circuit is divided to smaller modules for ease of testing and one hot spare is used for reconfiguration. Complexity, time and area overhead of designed fault tolerant comparator are more effective in compared recent methods.