What is non-linearity?
Non-linearity as such is either an unwanted feature of linear passive
components caused by non-linear elements within the bulk of these components, or, a desired
and useful feature of some semiconductor devices. What is actually the ever-present non-linearity?
Generally speaking, is it a change in the component impedance which depends on the level or
polarity of biasing, or, its change in the time, expressed in the general form of the Ohm's law
as a voltage versus current relationship in the time domain.
Device Linearity Tester
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- 10 kHz driving signal, amplitude: self-adjusting,
from 0.01 to 10 V
- DC bias from 0.1 to 10 V
- Component impedance range: from 10mW to 100W
- Maximum measurement rate: 30 times per second
- IFEE 488 Interface
- I/O Handler
- High-speed auto-ranging feature
- Third harmonic threshold level <-140 dB
- Advanced screening technique
- Evaluation of non-linearity variations in time domain
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Non-linearities and LTC 1010 in practice
The range of practical applications of LTC 1010 is very wide, being
preferably focused on:
- 100% production testing of electronic components
- Development of new components
- Quality and reliability testing of contacts
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- Non-linearity research
- Selection of components for audio applications
- Material and chemical analysis
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The most common application area of LTC 1010 is that of reliability assessment
of passive components. Defective or degraded components are not only less reliable, but they
also show non-linearities caused by the inhomogeneous and time-fluctuating current density,
which in turn is due to defects. Measurements of non-linearities have been successfully used
to assess the quality and reliability of the components, listed below.
- Thin and thick-film resistors
- Ceramic capacitors
- Tantalum and Niobium capacitors
- Aluminium capacitors
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- Testing of interconnection in general of any mechanical/electromechanical switching system
- Adjustable potentiometers and trimmers
- Printed Circuit Board testing
- Unipolar, under DC bias operated semiconductor devices
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Scripts to download:
[PDF] LTC 1010 - Low Impedance Non-linearity tester (223 kB)
[PDF] LTC 1010 - Aplication cards (1 MB)
nahoru
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