A capacitor self-calibration technique for high resolution ADCs
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 achieve self-calibration through the adjusting capacitors array and successive approximation (SAR) logic. A 14-bit SAR ADC using capacitor self-calibration technique we proposed has …
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Capacitance Calibration. The precision measurement of capacitors for the purpose of calibration is generally based on a national primary standard of high accuracy, …
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 …
Please note: NMIs using the BIPM''s electrical calibration services are asked to limit the frequency of their BIPM calibrations of resistors, capacitors and electronic voltage standards (Zeners) to once every two years for the same type of standard, and to no more than three standards of the same nominal value.
Customized calibration procedures specific to the type of monitor and application, from near background levels to high-dose rate applications. NATA calibration certification. Ensure …
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The Laboratory offers calibration of 2 and 3 terminal capacitors in the range from 10 pF to 1.11 µF, including measurement of capacitance and dissipation factor. Tests are normally made at a nominal ambient temperature of 23°C; and unless otherwise specified the test frequency will be 1 kHz.
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 4.8 µF/F, of any …
Intro to Capacitors｜Electronics ABC｜Learn about Technology …
As many as about two trillion of these devices are being manufactured each year worldwide. The most common type is the ceramic capacitor, but there are many other kinds as well, …
Research on the reliability of capacitor voltage transformers calibration …
Capacitor voltage transformer (CVT) is one of the most important instrument transformers widely used to prepare the voltage signal for control and protection equipment. The measuring accuracy of CVT plays an important role in the proper operation of the protection ...
A self-adaptive digital calibration technique for multi-channel high …
Rather than achieving higher resolution by adjusting the analog component values, this new digital method infers the capacitor weights of a SAR ADC with the help of a channel …
Please note: NMIs using the BIPM''s electrical calibration services are asked to limit the frequency of their BIPM calibrations of resistors, capacitors and electronic voltage standards (Zeners) to once every two years for the same type of standard, and to no more than three standards of the same nominal value.
Study of Standard Mica Capacitors with Respect to Time and Temperature | MAPAN …
Standard mica capacitors manufactured by General Radio are widely used by National Metrology Institutes (NMIs) and other calibration laboratories. The temperature coefficient and stability of standard mica capacitors play significant role in precision measurement. This paper reports the study of standard mica capacitor …
Dither‐based background calibration of capacitor mismatch and gain error in pipelined noise shaping successive approximation register ADCs ...
To obtain the value of, a dither signal (PN) is added into the residue of the first stage and amplified by the inter-stage amplifier, but occupies all of the redundant budgets of the second stage.As shown in Fig. 2, a scaled version of the dither signal is subtracted at the output of the amplifier by connecting the MSB capacitor of the second …
ACS Calibration offers laboratory and on-site Capacitance Meter Calibration Services. Our ISO/IEC 17025:2017 accredited, National Institutes of Technology (NIST) traceable Capacitance Meter Calibration services will ensure that your instruments can be trusted for accuracy and repeatability.
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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 …
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Standard Capacitance Reference or Working Standard
Standard Capacitance Reference or Working Standard 1409 Series Page 2 of 2 Long Island, NY IET LABS, INC. in the GenRad Tradition TEL: (516) 334-5959 † EMAIL: info@ietlabs 1409 Data Sheet/Oct. 2015 Figure 1 Change in capacitance
- calibration frequency While the calibration uncertainty, temperature-and aging-related drifts are critical for the use of the Standard, the absolute value is not. An absolute deviation from a nominal value of e.g. 5%, although usuall not used for Standards, would not be of concern at all, provided the calibration uncertainty is sufficiently ...
A novel capacitor recombination calibration method applied to 18 …
2. A novel capacitor recombination calibration method The capacitor reconstitution calibration method is introduced with the example of a 14-bit hybrid capacitive–resistive SAR ADC with a high M-bit capacitive DAC and a low N-bit resistive DAC, as shown in Fig. 1.If ...
A Output Code Density Histograms Based Calibration Algorithm of Capacitor …
A scheme for the calibration of capacitor mismatch in a successive-approximation register (SAR) analog-to-digital converter (ADC), using output code density histograms, is presented. By iterating the actual weights to minimize the residual standard deviation (RSD) between the partial fitting curve and the reference curve that corresponds to an ideal ADC, the …
Histogram-based calibration of capacitor mismatch in SAR ADCs
Exploiting the above properties, we propose the use of a histogram windowing technique to extract the capacitor mismatch, and then calibrate the ADC digitally. First, the calibration engine measures the average bin count within a window around the ith bit threshold as illustrated in Fig. 3..
Micromachines | Free Full-Text | Methodology for Testing Key Parameters of Array-Level Small-Area Hafnium-Based Ferroelectric Capacitors …
The capacitance array consists of one 800 fF capacitor, four 100 fF capacitors, and four 20 fF capacitors (due to process limitations, the minimum capacitor value is 16 fF, so 20 fF was chosen). The combinable range of capacitance values is from 800 fF to 1180 fF, with a minimum spacing of 20 fF.
16380C Capacitance Standard Set Operation Note | Keysight
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NIST Technical Note 1486 NIST Special Test Service for Four-Terminal-Pair Capacitance Standards …
Figure 1 shows a simple circuit model for a 4TP capacitance standard. A capacitance scaling method is used to calibrate 4TP standard capacitors of values from 10 nF to 100 μF. Aoki and Yokoi introduced this technique in 1997 [1]. References [1] and [2
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