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AVR120: Characterization and Calibration of the ADC on an AVR AVR120
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Introduction
Features
1
Theory
1.1
General ADC Concepts
1.2
Conversion Ranges
1.3
The Need for Calibration
1.4
Absolute Error
1.5
Offset Error
1.6
Gain Error
1.7
Non-linearity
1.8
Temperature, Frequency, and Supply Voltage Dependencies
1.9
Bandwidth and Input Impedance
2
Implementation
2.1
Fixed-point Arithmetic for Offset and Gain Error Compensation
3
Literature references
4
Revision History
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