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
M. Straayer;M. Perrott
中科院分区:
工程技术1区
文献类型:
--
作者:
M. Straayer;M. Perrott

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一个11位,50-MS/S时间-数字转换器(TDC)使用了一个多路径门控环形振荡器,每级有效延迟为6ps,展示了一阶噪声整形。在低于1 MHz的频率下,TDC误差在95分贝的动态范围内累积为80 fS(均方根),无需校准。157倍258微米的TDC在0.13微米的CMOS中实现,根据输入边沿之间的时间差,1.5V电源的功耗为2.2至21 mA。
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.