PROJECT TITLE :

Design and Characterization of a 3-bit 24-GS/s Flash ADC in 28-nm Low-Power Digital CMOS

ABSTRACT:

This paper presents the planning and characterization of a twenty four-GS/s 3-bit single-core flash analog-to-digital converter (ADC) in twenty eight-nm low-power digital CMOS. It shows the look study of the track-and-hold circuit and subsequent buffer stage and provides equations for bandwidth calculations while not intensive circuit simulations. These results are used to target leading-edge speed performance for a single ADC core. The ADC is capable of achieving its full sampling rate without time interleaving, which makes it the fastest single-core ADC in CMOS reported up to now to the simplest of our data. With an influence consumption of 0.four W and a good range of bits of 2.2 at twenty four GS/s, the ADC achieves a figure of benefit of three.6 pJ per conversion step while occupying a full of life space of 0.twelve mm2. Thanks to its high sampling frequency this ADC will enable ultra-high-speed ADC systems when combined with moderate time interleaving.