Title :
A 1.5 V high folding rate current-mode folding amplifier for folding and interpolating ADC
Author :
Weng, Ro-Min ; Chao, Chi-Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Dong Hwa Univ., Hualien
Abstract :
A current-mode coarse analog-to-digital converts (ADC) controlled folding amplifier is presented for design of the folding and interpolating ADCs. Compare to the conventional differential pair based voltage-mode folding amplifier, the proposed current-mode folding amplifier is much easier to accomplish higher linearity and lower distortion for ideal triangular transfer characteristic curve. The proposed circuit can be operated at 1.5V supply voltage so as to save power. The proposed folding amplifier is used to implement an 8-bit folding and interpolating ADC
Keywords :
amplifiers; analogue-digital conversion; current-mode circuits; 1.5 V; 8 bit; current-mode coarse analog-to-digital converts; current-mode folding amplifier; folding ADC; high folding rate amplifier; interpolating ADC; triangular transfer characteristic curve; voltage-mode folding amplifier; Chaos; Current mode circuits; Differential amplifiers; Linearity; Low voltage; Power amplifiers; Preamplifiers; Signal processing; Switches; Tail;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693491
