Title
A 12 Bit 120 Ms/S Sha-Less Pipeline Adc With Capacitor Mismatch Error Calibration
Abstract
In this paper, a 12-bit pipeline Analog-to-Digital (ADC) in 0.13 mu m CMOS process with SHA-less structure is presented. Two kinds of high-speed comparators are proposed to reduce settling time of residue amplifier. Meanwhile, the foreground calibration algorithm can correct the mismatch of capacitors and alleviate the effect of finite gain of residue amplifier for better linearity. A single-to-differential reference voltage buffer which can be easily controlled by the reference voltage outside is also designed in this ADC. Measurement results show that the ADC achieves an spurious-free dynamic range (SFDR) of 83.6 dBc, a signal-to-noise ratio (SNR) of 67.16 dB and a signal-to-noise and distortion ratio (SNDR) of 66.9 dB with 9.95 MHz input signal at 120 MS/s. The integral nonlinearity (INL) and differential nonlinearity (DNL) are within +/- 0.8 LSB and +/- 0.25 LSB, respectively.
Year
DOI
Venue
2018
10.1587/elex.15.20180481
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
pipeline ADC, SHA-less, high-speed comparator, reference voltage buffer, foreground calibration
Capacitor,Computer science,12-bit,Electronic engineering,Calibration
Journal
Volume
Issue
ISSN
15
13
1349-2543
Citations 
PageRank 
References 
0
0.34
1
Authors
5
Name
Order
Citations
PageRank
Zongkun Zhou101.01
Min Lin254.11
Shuigen Huang301.01
Ruoyu Wang428216.23
Yemin Dong500.68