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Analog Signal Chain Calibration

Authored on: Mar 1, 2012 by Gautam Das G, Praveen Sekar

Technical Paper

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Analog signal chains are prone to gain and offset errors that can propagate through the signal chain and reduce accuracy. Even a simple signal chain, such as one consisting of a sensor whose weak analog signal is first amplified and then fed to ADC before being converted to a digital value, can be negatively impacted by these types of errors.  This white paper will show how to use calibration to eliminate these errors from the entire signal chain using a calibrated delta sigma ADC and an on-chip EEPROM.
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