Noise Measurement of High-Ohm Metal-Oxide Resistors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0198073" target="_blank" >RIV/00216305:26220/26:0198073 - isvavai.cz</a>

Výsledek na webu

<a href="https://measurement.sk/M2025/doc/Proceedings-2025.pdf" target="_blank" >https://measurement.sk/M2025/doc/Proceedings-2025.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.23919/MEASUREMENT66999.2025.11078652" target="_blank" >10.23919/MEASUREMENT66999.2025.11078652</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Noise Measurement of High-Ohm Metal-Oxide Resistors

Popis výsledku v původním jazyce

This paper deals with the comparison of low-frequency noise of high-ohm metal-oxide resistors and resistors made by thick-layer technology. For measuring very small currents in the order of hundreds of pA to units of fA, a feedback ammeter is very often used, where high-ohm resistors must be connected to the feedback of a precision operational amplifier. Feedback resistors can reach resistance of several hundred GΩ. As the resistance increases, the level of Johnson´s thermal noise also increases. Most high-ohm resistors are manufactured by thick-layer technology that generates also low-frequency flicker noise with a frequency dependence of 1/f. Resistors based on metal-oxide technology should not generate low-frequency flicker noise, but their price is several times higher than the price of resistors made using thick-layer technology.

Název v anglickém jazyce

Noise Measurement of High-Ohm Metal-Oxide Resistors

Popis výsledku anglicky

This paper deals with the comparison of low-frequency noise of high-ohm metal-oxide resistors and resistors made by thick-layer technology. For measuring very small currents in the order of hundreds of pA to units of fA, a feedback ammeter is very often used, where high-ohm resistors must be connected to the feedback of a precision operational amplifier. Feedback resistors can reach resistance of several hundred GΩ. As the resistance increases, the level of Johnson´s thermal noise also increases. Most high-ohm resistors are manufactured by thick-layer technology that generates also low-frequency flicker noise with a frequency dependence of 1/f. Resistors based on metal-oxide technology should not generate low-frequency flicker noise, but their price is several times higher than the price of resistors made using thick-layer technology.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

MEASUREMENT 2025: Proceedings of the 15th International Conference on Measurement

ISBN

978-80-69159-00-6

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

40-43

Název nakladatele

Institute of Measurement Science, Slovak Academy of Sciences

Místo vydání

Smolenice Castle, Slovakia

Místo konání akce

Smolenice

Datum konání akce

1. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001588537200010