Wide band current-mode amplifier for pipelined ADC

Hua-yu, 贾华宇 Jia; Li, 刘丽 Liu; Jian-guo, 张建国 Zhang

doi:10.3788/ope.20142210.2855

Cited by 1 publication

(1 citation statement)

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“…So, it is necessary to use a resistance meter with its own measurement accuracy index better than the temperature coefficient of the measured resistor. The 34401A high-precision digital multimeter produced by Agilent Company (later replaced by the German Keysight 34461A model, but its functional indicators remain unchanged) is the most widely used in China [8] . The uncertainty of the resistance test of 34401A or 34461A digital multimeter is 20×10 -6 .…”

Section: Test Methods For Temperature Coefficient Of Resistorsmentioning

confidence: 99%

An Accurate Method for Measuring the Low-Temperature Coefficient of Resistors

Cui

Chen

et al. 2023

J. Phys.: Conf. Ser.

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The temperature coefficient of resistors is one of the key parameters to characterize the reliability of resistors. In precision circuit design, it is necessary to test and screen the key resistors and use the resistors with matching temperature coefficient values to ensure the accuracy and stability of circuit output. In this paper, aiming at how to accurately test the temperature coefficient value of low-temperature coefficient resistors, an indirect test method is proposed. The study adds a reference resistor into the test loop and tests the voltage values at both ends of the reference resistor. The tested resistor when the forward and reverse voltage sources are applied. The accurate resistance values of the tested resistor at different temperatures are obtained by calculation to calculate the temperature coefficient value of the resistor. The method can effectively reduce the measurement uncertainty of the test instrument and the potential thermoelectric influence generated in the test circuit. The measured results show that the measurement method proposed in this paper can obtain a more accurate and reliable resistor temperature coefficient.

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Section: Test Methods For Temperature Coefficient Of Resistorsmentioning

confidence: 99%