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A 12b 1GS/s Pipelined ADC with Digital Background Calibration …
This work proposes a novel correlation-based digital background calibration algorithm that altogether calibrates the inter-stage gain, capacitor mismatch, and kick-back errors with low hardware overhead and simple control logic. A prototype 12b1GS/s pipelined ADC equipped with the proposed calibration technique achieves >60dB SNDR and >80dB SFDR …
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 …
Low-loss Variable Air Capacitors
Variable Air Capacitors 1422 Datasheet Feb 2024 The 1422 is a stable and precise variable air capacitor intended for use as a con! nuously adjustable standard of capacitance. One of the ... AH2500A Capacitance Bridge for calibration of the 1422-D and with other LCR meters including the IET Labs 1693 Digibridge. Three-terminal - The 1422-CB, 1422-CL
Sencore LC75 Z Meter
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 …
A 12b 1GS/s Pipelined ADC with Digital Background Calibration …
Abstract: This work proposes a novel correlation-based digital background calibration algorithm that altogether calibrates the inter-stage gain, capacitor mismatch, and kick-back errors with low hardware overhead and simple control logic. A prototype 12b1GS/s pipelined ADC equipped with the proposed calibration technique achieves >60dB SNDR and …
Split Capacitor DAC Mismatch Calibration in Successive …
same weight as the lowest bit of the H-side array and the calibration is finished. To cover a wide enough calibration range, the bridge capacitor CB is designed to be 1.4C for the 4b+4b split CDAC implementation. The adjustment range of CC is 8C and the minimum step is 0.5C. Dummy capacitors around the core CDAC capacitor array have been
Capacitance Standard
With 50+ years of stability data and history, IET Labs manufactures a full line of standard capacitors that will cover most any budget and application. ... IET Labs, maintains some of the finest R, L and C calibration standards in the World. IET''s capacitance standards are manufactured with pride in the USA. SCA Series Capacitance Standard .
NIST Technical Note 1486
Accurate calibration of capacitors that range in value from 0.01 μF to 100 μF over the frequency range from 100 Hz to 100 kHz is desired. There are several instruments …
An International Comparison of High Voltage Capacitor Calibration
The suitability of a commercially available, compressed-gas-insulated, high voltage capacitor for precise measurement of ac voltages has been examined by national …
Digital foreground calibration of capacitor mismatch for SAR ADCs
A foreground digital self-calibration technique has been described. The calibration technique improves capacitor matching without using additional circuits and extensive computation. Applied to a 12 bit SAR ADC with 10% capacitor mismatch, SNDR is increased from 44.12 to 72.85 dB, resulting in 4.77 bit improvement of ENOB.
CALIBRATION CAPACITOR
Electronics, Calibration Capacitor, 1000 pf ± 1%, 10-32 to BNC Jack. Downloads. Datasheet; Specifications
Capacitance Standard Calibration
Capacitance Calibration - Capacitance Standards and Service . IET Labs is a premier calibration laboratory that is accredited by A2LA for Capacitance-Measure and Capacitance-Generate.. We can calibrate most capacitance standards or capacitance decades from 10 aF - 10 F with some of the best measurement uncertainties, as good as …
A non-binary capacitor array calibration circuit with 22-bit …
A novel capacitor array calibration circuit is presented in this paper. A non-binary capacitor array with 20 capacitors is used. The capacitor calibration algorithm is based on a perceptron learning rule, developed for artificial intelligence applications. The capacitor weights are adaptively calibrated to match the physical capacitors with up to 22 bit …
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 …
Film Capacitors
What types of precision capacitors and calibration capacitors does Electrocube offer? Electrocube''s wide selection of film capacitor manufacturing and precision capacitor sales includes: Audio-optimized Film Capacitors; Custom Film Capacitors; High Temperature Film Capacitors; pfc Precision Film Capacitors and Standards; Standard Film Capacitors
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 …
A capacitor self-calibration technique for high resolution ADCs
Abstract: In this paper, a novel capacitor self-calibration technique is presented, which can be used in high resolution ADCs, such as SAR ADC and pipeline ADC. The capacitors …
Capacitance Standards and Decades Information
Fixed capacitors have only one capacitance value, but variable capacitors have a range of capacitance values. ... a computer interface for programming, control, or data acquisition. Others provide precise measurements for testing or calibration, or are designed for use as precision components in larger systems or products. Low zero capacitance ...
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 ...
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 …
Capacitor mismatch calibration method for SAR ADC with …
Fig. 3 Proposed capacitor mismatches calibration before calibration after calibration ENOB, bits 4 bit improvement mismatch error, % 10–2 14 13 12 11 10 9 10–3 Fig. 4 Monte Carlo simulation with added capacitor mismatches in split-CDAC Capacitor mismatch calibration: Fig. 3 presents the proposed capacitor mismatch calibration logics.
Capacitor mismatch calibration method for SAR ADC with …
A novel capacitor mismatch calibration method is presented to compensate the capacitor mismatches in a successive approximation register (SAR) ADC. The method features a new weight-balancing split capacitive DAC which allows automatic extraction and calibration of the capacitor mismatches by itself. As a result, the ADC''s …
Dithering-based calibration of capacitor mismatch in SAR …
2 =0, the normal conversion continues and no calibration operation happens. Proposed dithering-based calibration: As illustrated in Fig. 1, the proposed calibration does not require additional analogue circuits. Assuming capacitors in the MSB section suffer from mismatches and the LSB capacitors are ideal, the weights of the MSB and LSB sections
A capacitive mismatch calibration method for SAR …
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 …
A background digital calibration of split-capacitor 16-bit SAR …
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 …
NIST Calibration Service for Capacitance Standards at Low …
This document describes the capacitance calibration service provided by NIST, including measurement procedures and systems used to calibrate capacitance …
Calibration capacitor
Calibration capacitor Model 2947C ENDEVCO Tel: +1 (866) ENDEVCO [+1 (866) 363-3826] ... Since the capacitor is exactly 1000 pF, the transfer function simplifies to Q (pC) = E (mV). The charge must be expressed in units of pC pk if the voltage is expressed in peak units. Similarly, voltage rms
Capacitor mismatch calibration for SAR ADCs based on …
A novel digital calibration technique is proposed to calibrate the capacitor mismatch in SAR ADCs. The capacitor mismatches are extracted based on the comparator metastability and intrinsic noise. The proposed technique does not require additional external control sequences or any modification of the main DAC. The simulation results of a 12-bit SAR …
12-bit 20M-S/s SAR ADC using C-R DAC and Capacitor Calibration
A successive approximation register (SAR) analog-to-digital converter (ADC) using a capacitor-resistor(C-R) digital-to-analog-converter (DAC) is proposed to implement the resolution of 12 bits maintaining the area for 10 bits. A calibration for upper-bit capacitors of the C-R DAC is proposed to increase the performance of the static and dynamic …
Teseq INA 3601 Surge Calibration Capacitor – Schaffner
The Teseq INA 3601 Surge Calibration Capacitor is a high-quality and reliable instrument used for surge testing and calibration purposes. Manufactured by Schaffner, a renowned company in the field of EMC testing equipment, this capacitor is designed to deliver accurate and precise results.
An 18-bit SAR ADC with Mixed DAC and Capacitive Recombination Calibration
This paper presents a high-resolution 18-bit SAR ADC with a high 10-bit capacitor DAC and a low 8-bit resistor DAC. The total required number of the unit capacitors is decreased to 512. Foreground digital calibration based on capacitive recombination is introduced to improve linearity. Preamplifiers and output offset …
General Radio 1413 Decade Capacitor Calibration
The General Radio 1413 Decade Capacitor is an essential tool for precise capacitance measurements and calibration tasks in laboratory and industrial environments. This instrument offers a wide range of capacitance values with high accuracy and stability, ensuring reliable performance across various frequency ranges and temperatures.
A Foreground LSB-Based Capacitor Mismatch Calibration …
This paper presents a foreground calibration technique with LSB capacitors for an 18-bit SAR ADC. Calibration using LSB capacitors suffers from poor accuracy owing to the comparator static offset and the random mismatch in LSB capacitors. The proposed floating capacitors operation addresses the miscalibration due to the saturation of sub-ADC …