A parasitic elimination bootstrapped switch and a fast settling residual amplifier for high-speed and high-resolution pipelined ADC

Amplifier Structure for High Gain and Fast Settling Applications

High gain amplifiers with fast settling times are needed for high-speed data converter applications. A cascaded amplifier architecture is discussed that can make use of several architecturally identical amplifies to achieve the desired gain. Only one of the amplifiers has a gainbandwidth product requirement that is modestly higher than the rest to keep the overall structure stable in the presen...

A fast-locking low-jitter pulsewidth control loop for high-speed pipelined ADC

A fast-locking, high-precision and low-jitter pulsewidth control loop for high-speed pipelined ADC is presented. Only through controlling the delay of rising edge to adjust duty cycle, the clock jitter could be suppressed greatly. An improved charge pump with a follower circuit and self-biased loop was designed to decrease the voltage ripples for higher accuracy and lower jitter. A start-up cir...

Speed Optimization and Capacitor Mismatch Calibration for High-Resolution High-Speed Pipelined A/D Converters

System-on-a-chip (SOC) requires integration of analog circuits and digital circuits on a single silicon chip to decrease cost, power dissipation, volume and radiant noise from the data bus on the printed circuit board (PCB). For these mixed-signal intergrated circuits, the standard digital CMOS technology is the best choice in view of cost, power dissipation and implementation convenience. The ...

The Effects of Switch Resistances on Pipelined ADC Performances and the Optimization for the Settling Time

Design and Development of a High Speed Pipelined-Cyclic ADC with 1.5 bits/Stage Error Correction

The paper describes an improved architecture of an 8-bit Analog to Digital Converter (ADC) based upon both the traditional Pipeline and the Cyclic ADC architectures. Cyclic ADC has a very low component count but the flip side is that it has a very low speed. On the other hand, a pipeline ADC has a comparatively higher speed but needs more number of components than a Cyclic ADC the component cou...