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This paper presents a low-power time integrator and its applications in an all-digital first-order ΔΣ time-to-digital converter (TDC). The time integrator is realized using a bi-directional gated delay line (BD-GDL) with time variable to be integrated as the gating signal. The integration of the time variable is obtained via the accumulation of the charge of the load capacitor and the logic state...
This paper presents a fully differential bi-directional gated delay line (BD-GDL) time integrator and its application in an all-digital first-order ΔΣ time-to-digital converter (TDC). The BD-GDL time integrator performs simultaneous time integration and multi-bit quantization, allowing rapid time integration and quantization with minimum power consumption. The nonlinearity of the BD-GDL time integrator...
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