Learn about sub 1 volt bandgap circuits in this 24-minute video lecture from NPTEL-NOC IITM. Explore the design principles, challenges, and applications of low-voltage bandgap reference circuits, which are crucial components in modern integrated circuit design. Gain insights into techniques for achieving stable voltage references below 1 volt, understand the trade-offs involved, and discover how these circuits contribute to power-efficient analog and mixed-signal systems.