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This paper describes the implementation of a 14-bit pipelined analog-to-digital converter (ADC) operating at a sampling frequency of 50MS/s with an effective resolution of 11.1 bit at Nyquist rate, fabricated in a 130-nm technology with a supply voltage of 1.2 volts and a power consumption of less than 110 mW. The ADC consists of differently scaled 1.5-bit pipeline stages only and dispenses with the...
This paper demonstrates a 6-GS/s 6-bit flash ADC and current-steering DAC pair in 0.13 mum CMOS. Averaging and interpolating techniques are applied to reduce the offsets and to save the power of the ADC. Current mode logics are used to achieve a high speed and to overcome the severe power bouncing issue. Design-for-testability circuits are added to conduct the at-speed tests by internally cascading...
This paper describes a comparative analysis between two topologies of operational amplifiers to design a 40 MS/s 12-bit pipeline analog to digital converter (ADC). The analysis includes AC and transient simulation to select the proper topology. This ADC is implemented in a 0.35 mum AMS CMOS technology with 3.3 V single power supply. The capacitors and selected operational amplifiers were scaled for...
In this paper, a 12-bit 50MHz Pipelined Low-Voltage ADC is presented, which consists of 8-stage-pipelined low resolution ADCs and a 4-bit flash ADC. Several critical technologies are used to guarantee the resolution and high sampling and converting rate such as 1.5bits per stage conversion, digital correction logic, gain-boosted telescopic OTA and so on. Finally the whole system is taped out in SMIC...
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