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Friday, July 31, 2020 | History

2 edition of high speed digital phase comparator. found in the catalog.

high speed digital phase comparator.

Romano, Antonio.

high speed digital phase comparator.

by Romano, Antonio.

  • 342 Want to read
  • 24 Currently reading

Published in 1987 .
Written in English


Edition Notes

Statementby Antonio Romano.
The Physical Object
Pagination(v), 113 leaves.
Number of Pages113
ID Numbers
Open LibraryOL19824678M

Abstract: Comparator is one of the fundamental building blocks in most analog to digital converters. Many high speed analog to digital converters such as flash analog to digital converter require high speed and low power comparators. A new double tail comparator is designed, where the circuit of a conventional double tail. A High-Speed CMOS Comparator with 8-b Resolution G. M. Yin, F. Op’t Eynde, and W. Sansen Abstract–This paper introduces a high-speed CMOS com-parator. The comparator consists of a differential input stage, two regenerative flip-flops, and an S-Rlatch. No offset cancel-lation is exploited, which reduces the power consumption asFile Size: KB.

for compensation so neither the area reduction or speed reduction penalty is incurred. Since feedback is not used, higher-order amplifiers such as cascades can be used to increase the gain of a comparator to arbitrarily high levels. If over-driven amplifiers are used for comparators, the power dissipation of these. types of comparators is File Size: KB.   A low-power high-speed comparator for analog to digital converters Abstract: A low-power high-speed two-stage dynamic comparator is presented. In this circuit, PMOS transistors are used at the input of the first and second stages of the comparator. At the evaluation phase, the second stage is activated after the first stage with a predetermined Cited by: 8.

High-Speed Electrical Interfaces Lecture 8 Components Phase-Locked Loops Borivoje Nikolic Phase Comparators φ C ∆φ φ 1 2 0 π/2 π 3π/2 2π Output describes phase difference between two inputs may be analog or digital may linearly cover a wide range, or just a narrow phase difference. 19 37 Timing Loop Components Phase ComparatorFile Size: KB. Abstract— A new low offset dynamic comparator for high resolution high speed analog-to-digital application has been designed. Inputs are reconfigured from the typical differential pair comparator such that near equal current distribution in the input transistors can be achieved for a meta-stable point of the comparator.


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High speed digital phase comparator by Romano, Antonio. Download PDF EPUB FB2

Comparators are known as 1-bit analog-to-digital converter and for that reason they are mostly used in large abundance in A/D converter. Dynamic comparators are being used in ADCs extensively nowadays because they are high speed, having zero static power consumption and provide full-swing digital level output voltage in lesser time : Prasun Bhattacharyya.

LM/LM High Speed Differential Comparator datasheet (Rev. C) Mar. 26, More literature: The Signal e-book: A compendium of blog posts on op amp design topics: Mar. 28, Application notes: AN Comparing the High Speed Comparators (Rev.

B) Apr. 23, Technical articles: Op Amps used as Comparators—is it okay. Mar. 14, Phase Comparator 1 Phase Comparator 2 Phase Comparator 3 COMP IN 3 SIG IN 14 2 PC1 OUT 1 PCP OUT INH 5 VCO 4 OUT C1 B 7 C1 A 6 VCO IN 9 GND 8 • Digital Phase-Locked Loop 3 Description The SN74LVA is a high-speed silicon-gate CMOS device that is pin compatible with the CDB and the CD74HC The device is.

The is a high speed digital circuit used as a phase comparator in an analog phase-locked loop. The device determines the “lead” or “lag” phase relationship and time difference between the leading edges of a VCO (V) signal and a Reference (R) input.

Since these edges occur only once per cycle, the detector has a range of ±2 radians. The comparator shall detect the relative phase and the missing transition [].

A CDR phase comparator is a digital circuit operating at line speed that compares the instants of transition (between different levels, or different phases) of the received pulses with the instants of transition of the local clock. The High-Speed Analog Comparator module provides high-speed operation with a typical delay of 20 ns with a typical offset voltage of ±5 mV.

The negative input of the comparator is always connected to the DAC circuit. The positive input of the comparator is connected to an analog multiplexer that selects the desired source Size: KB. A high speed latched comparator using positive feedback based back to back latch stage, suitable for pipelined Analog to Digital converter, with reduced delay and high speed is proposed During the RESET PHASE, when Clk is LOW (Clk=0), transistor NMOS_3 is in off state and pmos transistors PMOS_3, PMOS_9, PMOS_4, PMOS_10 are in on state.

The AD is a digital phase/frequency discriminator capable of directly comparing phase/frequency inputs up to MHz. Processing in a high speed trench-oxide isolated process, com- bined with an innovative design, gives the AD a linear detection range, free of indeterminate phase detection zones common to other digital Size: KB.

Although such ADCs can be used in high-speed electronic measurement equipment and radar systems, the recent driving force behind them is next generation Gbps/Gbps fiber optical transceivers. These transceivers take advantage of ultra-high-speed ADCs and digital-signal-processors (DSPs) to enable ultra-high data-rate.

High speed timing. Clock recovery and clock distribution. Line receivers T. Digital communications. Phase detectors.

High speed sampling. Read channel detection. PCMCIA cards. Zero-crossing detector. High speed analog-to-digital converter (ADC) Upgrade for LT and LT designs (RU. PIN CONFIGURATIONS V+ V– IN– QA QA GND LATCH 1. A High Speed and Low Voltage Dynamic Comparator for ADCs M.

Balaji 1, keyan 2, 3, akash 4 1,2,3,4 ECE, Muthayammal College of Engineering Abstract ² A new dynamic comparator is proposed and it is compare d with two existing comparators in terms of File Size: KB. sipating mW. In the CMOS comparator offset cancellation is used in both a single-stage preamplifier and a subsequent latch to achieve an offset of less than pV at comparison rates as high as 10 MHz, with a power dissipation of m W.

INTRODUCTION IN high-speed analog-to-digital converters, comparator. A high-speed CMOS comparator with 8-bit resolution A high-speed CMOS comparator is shown in figure The comparator consists of three blocks, an input stage, a flip-flop and SR latch.

The architecture uses two non-overlapping clocks (1and 2). The circuit operates in two modes, reset mode during 2 and regeneration mode during 1. Jim Williams, in Analog Circuit Design, Publisher Summary.

Comparators, in particular high-speed comparators, can be used to implement linear circuit functions which are as sophisticated as any op amp-based ously combining a fast comparator with op amps is a key to achieving high-performance results. High Speed Voltage Comparator A voltage comparator is an analog circuit that convert an analog signal to digital signal level.

Figure 1(a) shows the basic operation of comparator. That is, SS - OUT DD - V when V V V V when V V = > = > + + The comparator basically can be decomposed into three stages shown in Figure 1(b). The stages are inputFile Size: KB. The high-speed latched comparator (monobit ADC) is the key enabler of the monobit receiver design.

Its function is to accurately digitize the input signal at the correct times. Two of the key specs. SINGLE-CHANNEL: TLV is a single-channel high-speed push-pull output comparator, delay is ns, supply voltage: + V to + V FRONT SHAPING MODULE: This module can be for a wide range of voltage signal shaping period, as the frequency, phase difference time domain measurements and other front-end conditioning modulePrice: $ represented by M1/M2.

When the latch is high in regeneration phase, the reset switch turn ON and the transistor M4/M7 and M3/M6 form the two back to back inverters that regenerate the small output voltages in the initiation of this phase and converts into full scale digital levels.

In this comparator, the speed is high due to theFile Size: KB. LECTURE – HIGH-SPEED COMPARATORS (READING: AH – ) Objective The objective of this presentation is: 1.) Show how to achieve high-speed comparators Outline • Concepts of high-speed comparators • Amplifier-latch comparators • Summary Lecture – High-Speed Comparators (4/8/02) Page File Size: 67KB.

A phase detector or phase comparator is a frequency mixer, analog multiplier or logic circuit that generates a voltage signal which represents the difference in phase between two signal inputs.

It is an essential element of the phase-locked loop (PLL). Detecting phase difference is very important in many applications, such as motor control, radar and telecommunication systems, servo.

Vol. 5 () No. 1, pp. ISSN A Very High Speed, High Resolution Current Comparator Design A Very High Speed, High Resolution Current Comparator Design Neeraj K.

Chasta constraints and it should be useful in many digital and analog circuit applications.This paper presents a novel low power and high speed 4-bit comparator extendable to bits using floating-gate MOSFET (FGMOS). Here, we have exploited the unique feature of FGMOS wherein the effective voltage at its floating-gate is the weighted sum of many input voltages which are capacitively coupled to the by: 6.A low-power high-speed two-stage dynamic comparator is presented.

In this circuit, the voltage swing of the first stage of the comparator, pre-amplifier stage, is limited to Vdd/2 in order to.