A Comprehensive Analysis on Level Shifters: Challenges, Opportunities, and Future Directions

Level shifter has an important role in low power circuits useful in electronic gadgets such as smartphones, tablets, laptops and many other. Basically, level shifters are used to convert voltage levels from lower to higher or higher to lower. Low power dissipation is a major challenge in level shifter circuits. Along with power dissipation this paper includes comparison on delay and voltage range of various level shifter configurations. There is need for level shifter with minimum delay and higher speed which the existing level shifters are lacking from. Modified conventional level shifter shows better performance, consuming less power and has a less delay, making it suitable for applications such as IoT, battery powered devices, wireless networks etc.