The choice of logic styles for designing comparators has a significant impact on their performance characteristics. Different logic styles, such as static CMOS, dynamic CMOS, and pass-transistor logic, offer trade-offs in terms of speed, power consumption, and circuit complexity. Static CMOS logic is commonly used due to its simplicity and lower power consumption compared to dynamic CMOS. However, dynamic CMOS can provide faster operation but at the cost of higher power consumption. Pass-transistor logic, on the other hand, offers reduced transistor count and power consumption but may introduce additional complexities in terms of signal propagation and noise handling.
To optimize the design of comparators, various techniques and modifications are employed. These include the use of pre-charging and pre-computation techniques, which aim to reduce the overall delay in the comparator circuit. Pre-charging involves pre-charging the internal nodes of the comparator to a known state before performing the comparison operation, which helps reduce the propagation delay. Precomputation techniques utilize precomputed signals or intermediate results to accelerate the comparison process.
Author(s) Details:
Ch. Ganesh,
Electronics and Communication Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.
T. Sravan Kumar,
Electronics and Communication Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.
S. Pallavi,
Electronics and Communication Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.
G. Sai Preetham Reddy,
Electronics and Communication Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.
