An 8bit, 2.6ps Two-Step TDC in 65 CMOS Employing a Switched Ring-Oscillator Based Time Amplifier

被引:11
作者
Kim, Bongjin [1 ,2 ]
Kim, Hoonki [1 ]
Kim, Chris H. [1 ]
机构
[1] Univ Minnesota, Minneapolis, MN 55455 USA
[2] Rambus Inc, Sunnyvale, CA 94089 USA
来源
2015 IEEE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC) | 2015年
关键词
D O I
10.1109/CICC.2015.7338425
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An 8bit two-step time-to-digital converter (TDC) with a novel digital switched ring-oscillator based time amplifier (TA) is demonstrated in 65nm CMOS. The proposed TA achieves a predictable and programmable gain without requiring any calibration. The implemented 8bit two-step TDC with a 16x TA gain achieves a time resolution of 2.6ps at 80MS/s conversion rate while consuming 2mW. The measured DNL and INL arc 1.84LSB and 2.36LSB, respectively. The TDC area is 0.07mm(2).
引用
收藏
页数:4
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