jeep26 said:Hi Guys,
Could you please help me on the derrivation of offset and amplitude formula being used in the computation of ADC INL and DNL using code density testing.
below are the formulas.
Appreciate any help.
Regards.
ADC INL/DNL code density testing is a method used to measure the linearity of an analog-to-digital converter (ADC). It involves analyzing the output of the ADC to determine its integral nonlinearity (INL) and differential nonlinearity (DNL) values, which can impact the accuracy of the ADC's conversion.
ADC INL/DNL code density testing is important because it helps to ensure the accuracy and reliability of the ADC. INL and DNL values can affect the linearity and precision of the ADC's output, which can impact the performance of devices that rely on ADCs for conversion, such as sensors and data acquisition systems.
ADC INL/DNL code density testing is typically performed using specialized equipment and software. The ADC is connected to a test signal source, and the output is captured and analyzed to determine the INL and DNL values. This process may be repeated multiple times to ensure accuracy.
There are several factors that can impact the results of ADC INL/DNL code density testing. These include the quality of the test signal, the accuracy of the measurement equipment, and any external noise or interference that may affect the ADC's output. It is important to carefully control these factors to ensure accurate and reliable results.
Some common tools used for ADC INL/DNL code density testing include precision voltage sources, oscilloscopes, and dedicated ADC testing software. These tools are designed to provide accurate and precise measurements of the ADC's output, making them essential for performing this type of testing.