5 the primary disadvantage of the flash analog to digital converter adc is that. Sample and hold the adc staircase waveform during the conversion process 2.
Analog to digital conversion adcs out of different adcs successive approximation type adc uses s h circuit where the signal is to be held constant while a to d conversion is taking place.
Sample and hold circuits in adcs are designed to answer. 7 in a digital representation of voltages using an 10 bit binary code how many values can be defined. In analog demultiplexing in data distribution and in analog delay lines. The most important errors in shcs of various types are analyzed and methods for their reduction are described.
A sample and hold circuit sometimes represented as s h circuit or s h circuit is usually used with an analog to digital converter to sample the input analog signal and hold the sampled signal. Also its cmos implementation is very important because of its low cost and single chip integration of analog and digital parts is possible. We have designed a high speed cmos s h circuit.
1 stabilize the comparator s threshold voltage during the conversion process. Sample and hold circuits in adcs are designed to. In a camera the opening through which light enters the camera is called aperture.
3 sample and hold the d a converter staircase waveform during the conversion process. 2 sample and hold the output of the binary counter during the conversion process. 7 people answered this mcq question is the answer among for the mcq sample and hold circuits in analog to digital converters adcs are designed to.
You can find gate ece subject wise and topic wise questions with answers. Answer to sample and hold circuits in adcs are designed to. Sample and hold circuits are required in front of high speed adcs to improve their performance.
We have also provided number of questions asked since 2007 and average weightage for each subject. Prornty encoder hary output 6 sample and hold circuits in analog to digital converters adcs are designed to. Sample and hold the.
Examples of shcs for a 1 8 v 20 m sample s pipelined 0 18 μm cmos adc are presented. Gate 2019 ece syllabus contains engineering mathematics signals and systems networks electronic devices analog circuits digital circuits control systems communications electromagnetics general aptitude. In the s h circuit the analog signal is sampled for a short interval of time usually in the range of 10µs to 1µs.
The distance between the closest and the farthest part of a view captured on a photograph which is in focus is called depth of field. Sample and hold circuits are used in following applications. Sample and hold circuits in a d converters are designed to.
The design of sample and hold circuits shcs for pipelined analog to digital converters adcs fabricated in cmos technology is considered.