Dickson-Charge-Pump-Based Voltage-to-Time Conversion for Time-Based ADCs in 28-nm CMOS

Dickson-Charge-Pump-Based Voltage-to-Time Conversion for Time-Based ADCs in 28-nm CMOS

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This article demonstrates a digitally friendly time-based analog-to-digital converter (ADC) exploiting Dickson charge-pump (CP) as part of a voltage-to-time conversion (VTC) implemented viseart etendu cashmerie in 28-nm CMOS.In the proposed technique, the Dickson CP generates a ramp signal that is compared with the input voltage to generate a pulse of commensurable widths, which is then fed to a D-type flip-flop (DFF)-based time-to-digital converter (TDC).The TDC is composed of CMOS DFFs and digital circuits for digital conversion without any use of analog-intensive circuits, e.

g., amplifiers or current sources.Thanks to the robustness of Dickson CP characteristics, the digital outputs of the proposed ADC can be corrected bettinardi studio stock 28 center shaft through a low-complexity deterministic digital mapping with improvements of 1.

5-bit in peak effective number of bits (ENOB) and 9 dB in peak signal-to-noise-and-distortion ratio (SNDR) verified over three measured sample prototypes.