A novel redundant pipelined successive approximation register ADC
スポンサーリンク
概要
- 論文の詳細を見る
This paper presents a 12-bit 100MS/s time-interleaved successive approximation register (SAR) ADC designed for intermediate frequency 3G receivers. The 12-bit 100MS/s 2-channel ADC with voltage-controlled delay lines (VCDLs) based time-domain comparator is designed in 65nm CMOS, single-channel 12-bit 50MS/s pipelined SAR ADC consists of a 6-bit MDAC first stage and a 7-bit SAR ADC second stage, the operational amplifier is shared between the two channels for low power dissipation. A novel redundant SAR ADC used in the first stage is proposed to avoid comparator offset issue. Moreover, tri-level flash-SAR ADC is proposed and used in the second stage, the total unit capacitors to realize a 7-bit tri-level flash-SAR ADC are 50% of the conventional two's complement flash-SAR architecture. Simulation results in 65nm CMOS process show that, the 12-bit 100MS/s ADC achieves a signal-to-noise-and-distortion ratio (SNDR) of 73.32dB (11.89 ENOB), a spurious free dynamic range (SFDR) of 90.65dB with a 2.7MHz input tone, while dissipating 10mW from a 1.2V supply.
著者
-
Yang Huazhong
Department Of Electronic Engineering Tnlist Tsinghua University
-
Fan Hua
Department of Electronic Engineering, TNList, Tsinghua University
-
Wei Qi
Department of Electronic Engineering, TNList, Tsinghua University
-
Qiao Fei
Department of Electronic Engineering, TNList, Tsinghua University
関連論文
- RSPICE: A Fast and Robust Timing Simulator for Digital MOS VLSI (Special Section on VLSI Design and CAD Algorithms)
- Lightweight Precision-Adaptive Time Synchronization in Wireless Sensor Networks
- A Tag-Based Scheme to Realize Real-Time File Search in Hierarchical Peer-to-Peer Systems
- Balanced Switching Schemes for Gradient-Error Compensation in Current-Steering DACs
- A novel redundant pipelined successive approximation register ADC
- Enhanced recovery in the management of mild gallstone pancreatitis : a prospective cohort study