RESOLUTION TWO-STEP TDC CMOS BY PULSE-SHRINKING FINE STAGE, BUILT-IN COARSE GAIN CALIBRATION
DOI:
https://doi.org/10.46243/jst.2021.v6.i02.pp154-163Keywords:
.Abstract
This article proposes a computerized converter (TDC) solution that can meet a broad range of knowledge and fine-time goals at the same time. The proposed TDC utilizes a beat contracting (PS) plot for a precise target and two-advance (TS) engineering for a larger range in the second phase. The suggested PS TDC solves the undesired non-uniform contracting rate issue that plagues conventional PS TDCs by using an assumed counterbalance beat and a balance beat width detecting method. Due to sign spread and extension fraud between coarse and fine phases, the proposed TS architecture achieves nonlinearity with a few methods, resulting in an inferred coarse increase adjustment mechanism. The replication findings in a 0.18-m normal CMOS innovation show 2.0-ps targets and 16-piece go connected to 130-ns input time interim of 0.08-mm2 area in a TDC modification. With an 18.0 maws 1.8-V supply, it has a single-shot accuracy of 1.44 ps and operates at 3.3 MS/s. Built-in coordination includes beat contracting (PS), transition time-to-advanced, and two-stage transition time-to-advanced (TS).
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