AD5934YRSZ (ANALOG DEVICES)

The AD5934YRSZ is a 250 kSPS 12-bit Impedance Converter Network Analyser that combines an on-board frequency generator with a 12-bit, 1 MSPS, analogue-to-digital converter (ADC). The frequency generator allows an external complex impedance to be excited with a known frequency. The response signal from the impedance is sampled by the on-board ADC and a discrete Fourier transform (DFT) is processed by an on-board DSP engine. The DFT algorithm returns a real (R) and imaginary (I) data-word at each output frequency. Once calibrated, the magnitude of the impedance and relative phase of the impedance at each frequency point along the sweep is easily calculated.