A novel capacitor recombination calibration method applied to 18 …
This paper proposes an off-line capacitor selection calibration method that uses an optimal sequence of unity elements for an overall improvement of Signal to …
A background digital calibration of split-capacitor 16-bit SAR ADC …
A behavioral model is simulated to verify the proposed technique. To solve the capacitor mismatch of sub-binary design, two redundant bits are added, which means M=16 and N=18.The capacitor radix is set to 1.86 and the split capacitor is set to 1.2 Cu to avoid missing decision levels.The capacitor mismatch in the model is a normal …
2. Capacitance Calibration The precision measurement of capacitors for the purpose of calibration is generally based on a national primary standard of high accuracy, secondary/working Standards derived from it, and a capacitance- (or LCR-) meter used for the measurement (i.e. calibration) of the devices under test (DUT). This meter is normally
Fixed capacitors have only one capacitance value, but variable capacitors have a range of capacitance values. Capacitance accuracy, ... Typically, working standards are robust or rugged units for production or in-line testing and calibration. Engineering Calculators Related to Capacitance Standards and Decades . Capacitor Calculator.
12-bit 20M-S/s SAR ADC using C-R DAC and Capacitor Calibration
A calibration for upper-bit capacitors of the C-R DAC is proposed to increase the performance of the static and dynamic performances. To evaluate the proposed ADC, a 12-bit 20M-S/s SAR ADC is implemented using a 110-nm CMOS process with a supply of 1.2 V. The area and power consumption of the proposed ADC are 0.204 mm 2 and 1.24 mW, …
Agilent Technologies 16384A Standard Air Capacitor
Description. For accurate capacitance measurements, utilize the high-quality and dependable Agilent Technologies 16384A Standard Air Capacitor. This specific capacitor is appropriate for a variety of applications due to its capacitance value of 1000pF.
IET Labs is one of just a few accredited calibration laboratories, for Capacitance-Measure using the Andeen-Hagerling AH2700A. This allows us to calibrate your capacitance standards at various frequencies from 50 …
Histogram-based calibration of capacitor mismatch in SAR ADCs
An alternative approach is to use calibration to trim capacitors to reduce the mismatch [3, 4], but at the cost of additional analogue circuits. Recent work in suggests that it is possible to detect non-idealities in pipelined ADCs using the output histogram. In this Letter, we propose techniques to extract capacitor mismatch information from ...
In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other.
Dithering-based calibration of capacitor mismatch in SAR ADCs
Introduction. Successive approximation register (SAR) analogue-to-digital converters (ADCs) with mainly digital circuits and simple analogue circuits have been widely used in medium-resolution and medium-speed applications, such as environmental monitoring, battery monitoring, and motor control [1-5].However, capacitor mismatch is a …
Research on the reliability of capacitor voltage transformers ...
The basic structure of CVTs is shown in Fig. 1, it mainly consists of a capacitive voltage divider, a compensating reactor, an intermediate transformer and a damper IEC [3] and He et al. [2].The capacitive voltage divider consists of hundreds of same capacitor elements in series, which can be divided into high-voltage (HV) capacitor C H …
Calibration and performance of the readout system based on …
The Cherenkov Telescope Array (CTA) is the next-generation ground-based very-high-energy gamma-ray observatory. The Large-Sized Telescope (LST) of CTA is designed to detect gamma rays between 20 GeV and a few TeV with a 23-meter diameter mirror. We have developed the focal plane camera of the first LST, which has 1855 …
A 12-Bit SAR ADC with Binary Search Calibration Algorithm for a …
This paper proposes a 12-bit SAR ADC capable of calibrating a split capacitor using a binary search technique for bio-signal processing applications. The proposed SAR ADC employs a calibration logic circuit to calibrate a split capacitor vulnerable to process variations and mismatches. The proposed foreground calibration …
Dither‐based background calibration of capacitor mismatch and …
According to the thermometer codes, DWA logic operates to control the sampling capacitors to generate the residue of the first stage. Then, the residue is magnified times by the inter-stage amplifier and sampled by the second stage. At the same time, the most significant bit (MSB) capacitor of the second stage,, is connected to …
Capacitive recombination calibration method to improve the …
Abstract: This paper proposes a new capacitor recombination calibration method to compensate the capacitor mismatch of successive approximation register analog-to-digital converter (SAR ADC). This method focuses on automatically calibrating the mismatch of the SAR ADC capacitors to improve the static performance (Integral Non-Linearity, INL; …
Capacitive Soil Moisture Sensor Calibration with Arduino
The definition of charge, Q, uses the surface integral between the electric field, E, and dielectric material with relative permittivity, ε, across the surface area of the capacitor.The definition of electric potential, V, uses the line integral of the electric field.For the parallel plate capacitor, we can assume the electric field is constant across the …
Capacitor Mismatch Calibration of a 16-Bit SAR ADC Using …
This brief presents a 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) with input- signal-independent background calibration. A serial double conversion (SDC) method with second MSB decisions skipped is proposed to perform A/D conversion and background calibration simultaneously, with only one ADC …
Capacitive recombination calibration method to improve the …
This paper proposes a new capacitor recombination calibration method to compensate the capacitor mismatch of successive approximation register analog-to-digital converter (SAR ADC). This method focuses on automatically calibrating the mismatch of the SAR ADC capacitors to improve the static performance (Integral Non-Linearity, INL; Differential …
Research on the reliability of capacitor voltage transformers ...
The capacitor voltage transformer (CVT) has been widely used in high voltage (HV) and ultra-high voltage (UHV) substations to convert the primary voltage into the suitable voltage for measurement devices or relay protection devices. ... The failure rate of on-site calibration of CVTs is 0.0539%, which is about 5 times that of PTs according to ...
These ultra-high-stability capacitors are suitable for calibration of standards requiring an uncertainty of parts in 107, such as the AH2700A. The 1408 Standard Capacitor includes two standards: 10 pF and 100 pF. It maintains its own stability because it
Self-calibration method for capacitor mismatch elimination
An on-die capacitor mismatch elimination method, using reference clock and dc current is presented. The proposed method provides opportunity to measure the difference of the two uniform capacitor values, detect the mismatch due to technology process deviations, and bring it to minimum. In this paper a self-calibration (self-regulation) technique for two …
NIST Calibration Service for Capacitance Standards at Low Frequencies
This document describes the capacitance calibration service provided by NIST, including measurement procedures and systems used to calibrate capacitance standar ... Also included are summaries of calibration uncertainties of capacitors of various dielectric materials, such as fused-silica, nitrogen, air, and mica. Citation. Special …
IET is the World''s Leading Capacitance Standard Manufacturer. With 50+ years of stability data and history, IET Labs manufactures a full line of standard capacitors that will cover …
The Sencore LC75 Z Meter is a highly advanced and versatile tool used for analyzing capacitors and inductors. With its precise measurements and user-friendly interface, this analyzer provides accurate readings of capacitance, inductance, impedance, and equivalent series resistance (ESR).
A digital blind background capacitor mismatch calibration technique …
A digital blind background capacitor mismatch calibration technique for pipelined ADC Abstract: A new digital background calibration technique to compensate for the capacitor mismatch in pipelined analog-to-digital converter (ADC) is presented. A digital signal from the ADC output is constructed so as to transform the capacitor …
A capacitive mismatch calibration method for SAR ADCs based …
To address the capacitance array mismatch in SAR ADCs, this paper proposes a novel capacitor calibration scheme based on the Time-to-Digital Converter (TDC). This scheme achieves calibration accuracy as high as 0.01% and can be flexibly designed to meet the accuracy requirements of SAR ADCs. Simulation results indicate …
Description. The Sencore LC75 Z Meter is a highly advanced and versatile tool used for analyzing capacitors and inductors. With its precise measurements and user-friendly interface, this analyzer provides accurate readings of capacitance, inductance, impedance, and equivalent series resistance (ESR).
