Title :
Harmonic distortion in high-speed differential A/D converters
Author :
Boni, Andrea ; Morandi, Carlo
Author_Institution :
Dipt. di Ingegneria dell´´Inf., Parma Univ., Italy
fDate :
3/1/1998 12:00:00 AM
Abstract :
The brief discusses the harmonic distortion introduced by the differential input adapter commonly used in flash and folding A/D converters operating without sample and hold. A distributed model of the adapter is proposed, which provides physical insight and allows quantitative evaluation. Moreover, a technique based on a feedforward compensation is presented. It provides a significant reduction of the harmonic distortion with a small increase of the die area
Keywords :
analogue-digital conversion; compensation; feedforward; harmonic distortion; die area; differential input adapter; distributed model; feedforward compensation; harmonic distortion; high-speed differential A/D converters; Analog circuits; Analog integrated circuits; Bandwidth; Capacitance; Differential amplifiers; Harmonic distortion; Operational amplifiers; Resistors; Transient analysis; Voltage;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
