ABSTRACT
The increasing usage of digital signal processing in almost every aspect of the technology has inevitably increased the need for fast and accurate analogto-digital converters (ADC). Moreover, the development of fast submicron complementary metal-oxide semiconductor (CMOS) technologies with constantly reducing headroom and increased device mismatch make the design of accurate ADCs a more difficult task than previously. The reduced headroom leads to decreased least significant bit (LSB) values. That results in the need for more accurate circuits in order to achieve the same resolution. At the same time, the increased mismatch makes these circuits less accurate. Now, the study of the offset cancellation techniques for high-speed ADCs is brought into focus more than ever.
