题目/Title：Charge-compensation-based reference technique for switched-capacitor ADCs

作者/Author：
                        Ya Wang,Fule Li,Chunying Xue,Zhihua Wang

会议/Conference：ISCAS 2015

地点/Location：Lisbon, Portugal

年份/Issue Date：2015.24-27 May

页码/pages：pp. 2257 - 2260

摘要/Abstract：
This paper presents an enhanced voltage reference for Switched-Capacitor ADCs. Charge losing effect is analyzed and quantized. Charge-Compensation-Based (CCB) technique is introduced to reduce the signal-dependent effect. Charge Compensation Unit (CCU) is designed to compensate charge. It features in low overhead on power and chip-size. A proof-of-principle CCB reference design for a 12-bit 500MS/s pipelined ADC is implemented. Simulation results show at least 3dB SNDR and 10dB SFDR improvement achieved, with input sweeping from low frequency to nyquist rate.