A Multi-Path Gated Ring Oscillator TDC With First-Order Noise Shaping
A Multi-Path Gated Ring Oscillator TDC With First-Order Noise Shaping
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DOI:
10.1109/jssc.2009.2014709
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发表时间:
2009-03
影响因子:
5.4
通讯作者:
M. Straayer;M. Perrott
中科院分区:
文献类型:
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作者:
M. Straayer;M. Perrott
An 11-bit, 50-MS/s time-to-digital converter (TDC) using a multipath gated ring oscillator with 6 ps of effective delay per stage demonstrates 1st-order noise shaping. At frequencies below 1 MHz, the TDC error integrates to 80 fs (rms) for a dynamic range of 95 dB with no calibration required. The 157 times 258 mum TDC is realized in 0.13 mum CMOS and, depending on the time difference between input edges, consumes 2.2 to 21 mA from a 1.5 V supply.