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AVR120: Characterization and Calibration of the ADC on an AVR AVR120
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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