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A Time-to-Digital Converter Based on a Multiphase Reference Clock and a Binary Counter With a Novel Sampling Error Corrector

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4 Author(s)
Kwang-Chun Choi ; Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea ; Seung-Woo Lee ; Bhum-Cheol Lee ; Woo-Young Choi

A new type of sampling error corrector for a time- to-digital converter (TDC) having a multiphase reference clock and a binary counter is demonstrated. With this corrector, sampling errors caused by asynchronous TDC inputs are corrected without requiring additional counters or reclocking circuits. A TDC having the corrector is implemented in 90-nm CMOS logic technology. It has 13.6-ps/least significant bit resolution and 13-bit input dynamic range. It consumes 18 mW from a 1.2-V supply and occupies a 100 × 210 μm2 chip area.

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:59 ,  Issue: 3 )