A Study of the Effect of Integrating Low-Pass Filter in Measuring the Dynamic Performance of a High Speed 8-bit Analog-to-Digital Converter (ADC)

This research focuses on integrating a low pass filter to the AD7575 DUT Board to measure its dynamic performance. The DUT Board integrated with the low-pass filter was attached to the ADI Family Board and was tested using the CTS5010 resources to measure the necessary dynamic performance parameters. The low pass filter was used to lessen the out-of-bound noise going into the ADC input that affects the measurement of dynamic performance of the ADC. Three active low pass filters were designed on the circuit board, namely Butterworth, Chebyshev and Bessel Filter. The integration of the filter showed significant change, with the Butterworth filter giving better measurement as compared to the other low-pass filters used.