A 25-bit reference resistive voltage divider

Tsao, S. Hoi

doi:10.1109/tim.1987.6312688

Cited by 22 publications

(4 citation statements)

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“…The NIST AWB uses two Fluke 57X0A calibrators as the stable voltage sources, and a Keithley 6430A as a current detector [21][22][23][24]. The output voltages of the 57X0As are calibrated in advance using a measurements International 8000A/8001A automated Cutkosky binary voltage divider [25,26]. The voltage corrections are applied during the measurement to V x and V s .…”

Section: Nist Awbmentioning

confidence: 99%

Precise high resistance comparison between the NMIJ traveling dual source bridge and the NIST adapted Wheatstone bridge

Oe¹,

Payagala²,

Panna³

et al. 2022

Metrologia

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A precise high resistance comparison was performed between the traveling dual-source bridge developed by the national metrology institute of Japan (NMIJ) and the adapted Wheatstone bridge of the national institute of standards and technology (NIST) from 10 MΩ to 100~TΩ at NIST. The NMIJ traveling bridge was shipped to NIST Gaithersburg and was installed right next to the NIST bridge and these bridges alternately measured the resistance ratio of the high resistance standards, without moving the location of the resistors inside the temperature-controlled air bath. Having the bridges and resistance standards in the same location for the comparison decreased the transportation and temperature coefficient effects on the resistance standards, contributing to the excellent agreement of the measured values. The NMIJ traveling bridge used an 8.5-digit digital multimeter and a relay switch box to determine a resistance ratio by measuring the ratio of the voltages applied to the resistors. The comparison was started from 10 MΩ based on the same 1 MΩ standard resistor calibrated using a NIST 2-terminal cryogenic current comparator bridge, and standard resistors from 10 MΩ to 100 TΩ were calibrated by repeating 10:1 scaling measurements with both systems. Excellent agreement was obtained within the uncertainty of all resistance ranges and the difference between both systems was less than 1 μΩ/Ω up to 1 TΩ and the degrees of equivalence for 10 TΩ and 100 TΩ were less than 6 μΩ/Ω.

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Section: Nist Awbmentioning

confidence: 99%

Precise high resistance comparison between the NMIJ traveling dual source bridge and the NIST adapted Wheatstone bridge

Oe¹,

Payagala²,

Panna³

et al. 2022

Metrologia

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“…An interesting technique to determine the voltage ratios in selfcalibrating dividers was developed at SPRING Singapore [12]. High precision binary Voltage dividers, based on the Cutkosky principle [13,14], are already commercially available, but at high costs. Our realization, instead, consists in a not-commercial precision divider made up by easily available components and by instruments of which electrical calibration laboratories are normally equipped.…”

Section: Automatic DC Voltage Precision Resistive Dividermentioning

confidence: 99%

Automatic DC voltage precision resistive divider with ratios between 10:1 and 107:1

2021

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“…The Cutkosky-divider is a modified R-2R ladder in order to make it easy to calibrate [2]. It is often used in national standards laboratories and in other applications, where extremely high precision is needed [4,5,6]. Since the first publication of the divider by R. D. Cutkosky in 1978, its parameters, benefits and drawbacks have been analyzed in details by many authors.…”

Section: Introductionmentioning

confidence: 99%

“…Since the first publication of the divider by R. D. Cutkosky in 1978, its parameters, benefits and drawbacks have been analyzed in details by many authors. To illustrate the possibilities of this special ladder, there are realized ladders up to a resolution of 25 bits [5]. The calibration method of the divider invented by Cutkosky [2], is an application of the classical Gauss method.…”

Section: Introductionmentioning

confidence: 99%

Calibration algorithm for current-output R-2R ladders

Vargha

Zoltan

2001

IEEE Trans. Instrum. Meas.

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The paper presents a new calibration algorithm for current output R-2R ladders. The R-2R ladders are popular because they are easy to realise, but the resistance tolerances limit their linearity properties. However, it is possible to achieve higher linearity with self-calibration techniques. A formerly published algorithm by Cutkosky is available for the so-called Cutkosky R-2R ladders. A similar algorithm can be applied to the current-output ladders, which are widely used as MDAC or DAC. In the paper the Cutkosky divider is shortly discussed, and then a new description is presented as basis of the calibration algorithm. The calibration algorithm is discussed in details, and the error budget is analysed. A simulator was also written to verify the theory.

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A 25-bit reference resistive voltage divider

Cited by 22 publications

References 0 publications

Precise high resistance comparison between the NMIJ traveling dual source bridge and the NIST adapted Wheatstone bridge

Precise high resistance comparison between the NMIJ traveling dual source bridge and the NIST adapted Wheatstone bridge

Automatic DC voltage precision resistive divider with ratios between 10:1 and 107:1

Calibration algorithm for current-output R-2R ladders

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