TY - JOUR N2 - As it contains elements of complete digital impedance meter, the AD5933 integrated circuit is an interesting solution for impedance measurements. However, its use for measurements in a wide range of impedances and frequencies requires an additional digital and analogue circuitry. This paper presents the design and performance of a simple impedance meter based on the AD5933 IC. Apart from the AD5933 IC it consists of a clock generator with a programmable prescaler, a novel DC offset canceller for the excitation signal based on peak detectors and a current to voltage converter with switchable conversion ratios. The authors proposed a simple method for choosing the measurement frequency to minimalize errors resulting from the spectral leakage and distortion caused by a lack of an anti-aliasing filter in the DDS generator. Additionally, a novel method for the AD5933 IC calibration was proposed. It consists in a mathematical compensation of the systematic error occurring in the argument of the value returned from the AD5933 IC as a result. The performance of the whole system is demonstrated in an exemplary measurement. L1 - http://www.czasopisma.pan.pl/Content/90297/PDF/Journal10178-VolumeXXII%20Issue1_02.pdf L2 - http://www.czasopisma.pan.pl/Content/90297 PY - 2015 IS - No 1 EP - 24 DO - 10.1515/mms-2015-0006 KW - impedance KW - converter KW - AD5933 KW - SoC KW - system on a chip KW - measurement A1 - Chabowski, Konrad A1 - Piasecki, Tomasz A1 - Dzierka, Andrzej A1 - Nitsch, Karol PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 22 DA - 2015[2015.01.01 AD - 2015.12.31 AD] T1 - Simple Wide Frequency Range Impedance Meter Based on AD5933 Integrated Circuit SP - 13 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/90297 T2 - Metrology and Measurement Systems ER -