Comparator metastability ratio

Author: niao

August undefined, 2024

WebApr 17, 2024 · To demonstrate the proposed techniques, a design example of SAR ADC is fabricated in a 55-nm CMOS technology, consuming 1.2 mW at a 1-V power supply. It achieves a signal-to-noise-and-distortion... WebOct 26, 2012 · Abstract: Metastability is the inability of a latched comparator to reach a decision in the available amount of time. Existing analyses of metastability disregard noise, treating it as a deterministic phenomenon that inevitably happens every-time the input voltage, v Idiff, falls in a certain interval around 0, and which is restricted to the …

A 14-bit 4-MS/s VCO-Based SAR ADC With Deep Metastability …

http://nano.project.ifi.uio.no/resources/Cadence/komp/metastability.pdf WebApr 1, 2024 · In this paper, a 0.6 V, 12-bit SAR ADC is designed in a 0.18-μm CMOS process with a proposed time-domain VCDL-based comparator. The stages of the VCDL circuit are optimized to compromise in area, accuracy, and speed. Cross-coupled inverters with substrate input are used to form the phase detector (PD), in which the dead zone is … thomas sodor race

Influence of Metastability Errors on SNR in Successive …

WebMetastability is a problem that occurs in all latching comparators when the input is near the comparator decision point [3]. The problem occurs when the comparator takes more time to switch to a valid output state than is available in the sample interval. In order to … WebOct 26, 2012 · Abstract: Metastability is the inability of a latched comparator to reach a decision in the available amount of time. Existing analyses of metastability disregard … Webonly exploit the prolonged comparator decision time in the events of metastability, the proposed techniques are effective in a ... dissipation is 2.88 µW and it achieves a signal-to-noise distortion ratio of 50.66 dB with a figure of merit of 51.8 fJ/c.-s. 1Introduction ... comparator metastability is detected. It also indicates that the ... thomas soehl

A Linearity-Improved 8-bit 320-MS/s SAR ADC With Metastability …

Comparator metastability ratio

Dynamic Comparators - Iowa State University

http://i.stanford.edu/pub/cstr/reports/csl/tr/95/671/CSL-TR-95-671.pdf WebA comparator may suffer from ‘metastability error’ if the available time for the comparator to carry out decision process is less than the time taken by it to settle down: (1) T c m p = K ln V f s V m i n, We know from the above equation that comparator takes longer time if values to be resolved are closer to each other [9].

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WebMay 1, 2013 · Existing analyses of metastability disregard noise, treating it as a deterministic phenomenon that inevitably happens every-time the input voltage, vIdiff, falls in a certain interval around 0, and which is restricted to the aforementioned interval. Webrest of bottom plates connected to ground Æinput to comparator= -Vin +VREF/2 • Comparator is strobed to determine the polarity of input signal if - MSB=1 if + ... • …

WebDynamic Comparator Noise and Metastability Simulation Techniques IEEETV. soon 5 May 2024, 9am EDT (UTC -4) 2024 IEEE VIC SUMMIT & HONORS CEREMONY GALA. WebMetastability Summary • Metastability is unavoidable All you can do is make τsmall and give enough time for regeneration to make PE small. • Supplementary Slides examine …

http://class.ece.iastate.edu/ee435/lectures/Dynamic%20Comparators.pdf WebApr 1, 2024 · A 0.6-V 12-bit 13.2-fJ/conversion-step SAR ADC with time-domain VCDL-based comparator and metastability immunity technique. Author links open overlay panel Xingyuan Tong ... The simulation results show that the proposed SAR ADC can achieve a 73.75-dB signal-to-noise and distortion ratio (SNDR) and consume 3.6 μW power …

WebPractical modeling of comparator metastability for conventional and LSB-first SAR ADCs Abstract: A practical model for characterizing comparator metastability errors in SAR …

Webimprovement is shown in signal-to-noise-plus-distortion ratio by using the statistical estimator for an 11-bit SAR over a wide range of capacitance mismatch and ADC noise. ... pseudo-random sequences during comparator metastability periods to measure the distance between code-boundaries [8]. However, most previously reported techniques … ukc american staffordshire terrierWebAt a sampling rate of 80 MS/s, the prototype achieves a peak signal-to-noise-and-distortion ratio of 58.3 dB for an input frequency of 80 kHz. Also, for a comparator bias current of 100 μA, extrapolations from measurements show that the BER is <;10 -15 errors/sample. uk cancer budgetWebThe corresponding binary output should be interpreted as either 011 or 100. If, however, the comparator output is in a metastable state, the simple binary decoding logic shown may … ukc american leopard houndWebOct 21, 2024 · Dynamic comparator For the 10-bit ADC with 1.2 V full-scale range, the input referred noise of the comparator must be less than 0.3 LSB (i.e., 0.35 mV). To achieve this target, a dynamic pre-amplifier is used to reduce the equivalent noise of the latch. Fig. 4 shows the schematic of the comparator. Download : Download high-res … thomas soerensWebThe primary application where mass comparators are used is in mass calibration. For lower class weights, in particular classes M1 to M3, F1 and F2, manual mass comparators … ukca low voltage directiveWebA low power CMOS latched comparator has been designed in TSMC 0.18um employ neutralization technique for reducing Kickback Noise. The simulation results demonstrate that it can work at 1GHz... uk canal boating holidaysWebComparator Metastability Reg. Speed – Linear Model • Cascade preamp stages (typical flash comparator has 2-3 pre-amp stages) • Use pipelined multi-stage latches; pre-amp … uk can it limited