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Nonlinearity Error

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may be challenged and removed. (December 2008) (Learn how and when to remove this template message) Demonstrates A. Differential Linearity where a change in the input produces a corresponding change in output nonlinearity error formula and B. Differential Non-linearity, where the relationship is not directly linear Differential

Nonlinearity Error Definition

nonlinearity (acronym DNL) is a term describing the deviation between two analog values corresponding to adjacent input digital values.

Integral Nonlinearity Adc

It is an important specification for measuring error in a digital-to-analog converter (DAC); the accuracy of a DAC is mainly determined by this specification. Ideally, any two adjacent digital codes correspond

Linearity Error Calculation

to output analog voltages that are exactly one Least Significant Bit (LSB) apart. Differential non-linearity is a measure of the worst case deviation from the ideal 1 LSB step. For example, a DAC with a 1.5 LSB output change for a 1 LSB digital code change exhibits 1⁄2 LSB differential non-linearity. Differential non-linearity may be expressed in fractional bits or as a independent nonlinearity calculation percentage of full scale. A differential non-linearity greater than 1 LSB may lead to a non-monotonic transfer function in a DAC.[1] It is also known as a missing code. Differential linearity refers to a constant relation between the change in the output and input. For transducers if a change in the input produces a uniform step change in the output the tranducer possess differential linearity. Differential linearity is desirable and is inherent to a system such as a single-slope analog-to-digital converter used in nuclear instrumentation. Contents 1 Formula 2 See also 3 References 4 External links Formula[edit] DNL(i) = V out ( i + 1 ) − V out ( i ) ideal LSB step width − 1 {\displaystyle {\text{DNL(i)}}={{V_{\text{out}}(i+1)-V_{\text{out}}(i)} \over {\text{ideal LSB step width}}}-1} See also[edit] Integral nonlinearity References[edit] ^ INL and DNL definitions "A DNL error specification of less than or equal to 1LSB guarantees a monotonic transfer function with no missing codes. " http://www.maxim-ic.com/app-notes/index.mvp/id/283 External links[edit] INL/DNL Measurements for High-Speed Analog-to-Digital Converters (ADCs) Application Note 283 by Maxim Understanding Data Converters This electronics-related article is a stub. You can help Wikipe

日本語 Search English 中文 日本語 Products Power Switching Regulators Battery Management Isolated Power Charge Pumps Linear Regulators LED nonlinearity error equation Drivers Hot-Swap ICs Motor Driver ICs Power Switching Display Power and offset error in adc Control Supervisors, Voltage Monitors, and Sequencers Analog Amplifiers Audio Video Data Converters Sensors and Sensor Interface nonlinearity definition Switches and Multiplexers Filters Voltage References Interface Transceivers Controllers/Expanders Level Translators Circuit Protection Isolation ICs High-Speed Signaling Signal Integrity Broadband Switches Universal Serial Bus (USB) Products https://en.wikipedia.org/wiki/Differential_nonlinearity 4-20mA Current Loop Products Industrial Digital I/O Communications iButton Wireless and RF Secure NFC Tags and RFID Readers Optical Powerline Communications (PLC) T/E Carrier and Packetized Digital Real-Time Clocks Embedded Security Microcontrollers 1-Wire Data Loggers Clock Generation and Distribution Memory Products Industries Automotive Military and Aerospace Metering and Energy Measurement Solar Energy All What's https://www.maximintegrated.com/en/app-notes/index.mvp/id/748 New Solutions Industrial Control and Automation Embedded Computing Sensors and Field Instruments Smart Energy Medical Diagnostics Monitoring and Therapy Medical Imaging Consumer Automotive Electric Vehicles Infotainment Automotive Systems Computing Communications Cable Wireless Data Communications Functional General Analog Input General Analog Output Sensing Power Digital I/O FPGA Power Application Index All Solutions Design Overview Circuits Library Design Technology Reference Designs Design Tools Technical Documents Packaging Design Partners Videos Cross-Reference Search Order Support Support Center Applications Support by Email Applications Support by Phone FAQs QA and Reliability Environmental About Us Maxim Profile Investor Relations Events Careers Worldwide Locations Leadership Newsroom Maxim Ventures Corporate Policies Corporate Responsibility Contact Us Maxim > Design Support > Technical Documents > Tutorials > A/D and D/A Conversion/Sampling Circuits > APP 748 Keywords: ADC, INL, DNL, root-sum-square, DC performance, static performance, AC performance, offset, gain, reference, drift, initial accuracy, transition noise, ADCs, analog digital converters, convertors Related Parts TUTORIAL 748 The ABCs of

Федерация 中国 (China) 日本 (Japan) 대한민국 (Korea) 台灣 (Taiwan) See All Countries Toggle navigation INNOVATIES WEBSHOP ONDERSTEUNING COMMUNITY Nederland Sensor Terminology Publish Date: sep 23, 2013 | 5 Ratings | 4,60 out of 5 | Print Overview This tutorial is part of the http://www.ni.com/white-paper/14860/en/ National Instruments Measurement Fundamentals series. Each tutorial in this series, will teach you a specific topic of common measurement applications, by explaining the theory and giving practical examples. This tutorial will cover sensors and the terminology associated with them. For the complete list of tutorials, return to the NI Measurement Fundamentals Main page. Table of Contents Sensitivity Range Precision Resolution Accuracy Offset Linearity Hysteresis Response Time Dynamic Linearity 1. Sensitivity The sensitivity linearity error of the sensor is defined as the slope of the output characteristic curve (DY/DX in Figure 1) or, more generally, the minimum input of physical parameter that will create a detectable output change. In some sensors, the sensitivity is defined as the input parameter change required to produce a standardized output change. In others, it is defined as an output voltage change for a given change in input parameter. For example, nonlinearity error formula a typical blood pressure transducer may have a sensitivity rating of 10 mV/V/mm Hg; that is, there will be a 10-mV output voltage for each volt of excitation potential and each mm Hg of applied pressure. Sensitivity Error The sensitivity error (shown as a dotted curve in Figure 1) is a departure from the ideal slope of the characteristic curve. For example, the pressure transducer discussed above may have an actual sensitivity of 7.8 mV/V/mm Hg instead of 10 mV/V/mm Hg. Back to Top 2. Range The range of the sensor is the maximum and minimum values of applied parameter that can be measured. For example, a given pressure sensor may have a range of -400 to +400 mm Hg. Alternatively, the positive and negative ranges often are unequal. For example, a certain medical blood pressure transducer is specified to have a minimum (vacuum) limit of -50 mm Hg (Ymin in Figure 1) and a maximum (pressure) limit of +450 mm Hg (Ymax in Figure 1). This specification is common, incidentally, and is one reason doctors and nurses sometimes destroy blood pressure sensors when attempting to draw blood through an arterial line without being mindful of the position of the fluid stopcocks in the system. A small syringe can exert a tremendous va

 

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