Part # AD5934 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD5934 250 kSPS 12-Bit Impedance Converter Network Analyzer Data Sheet (Rev. A)

Part Details:

250 kSPS, 12-Bit Impedance Converter, Network Analyzer AD5934 FEATURES GENERAL DESCRIPTION Programmable output peak-to-peak excitation voltage The AD5934 is a high precision impedance converter system to a maximum frequency of 100 kHz solution that combines an on-board frequency generator with a Programmable frequency sweep capability with 12-bit, 250 kSPS, analog-to-digital converter (ADC). The serial I2C interface frequency generator allows an external complex impedance to Frequency resolution of 27 bits (<0.1 Hz) be excited with a known frequency. The response signal from Impedance measurement range from 1 k to 10 M the impedance is sampled by the on-board ADC and a discrete Capable of measuring 100 to 1 k with additional circuitry Fourier transform (DFT) is processed by an on-board DSP Phase measurement capability engine. The DFT algorithm returns a real (R) and imaginary (I) System accuracy of 0.5% data-word at each output frequency. 2.7 V to 5.5 V power supply operation Once calibrated, the magnitude of the impedance and relative Temperature range: -40°C to +125°C phase of the impedance at each frequency point along the sweep 16-lead SSOP package is easily calculated using the following two equations: 2 + APPLICATIONS Magnitude = 2 R I Electrochemical analysis Phase = tan-1(I/R) Bioelectrical impedance analysis A similar device, available from Analog Devices, Inc., is the Impedance spectroscopy AD5933, which is a 2.7 V to 5.5 V, 1 MSPS, 12-bit impedance Complex impedance measurement converter, with an internal temperature sensor, available in a Corrosion monitoring and protection equipment 16-lead SSOP. Biomedical and automotive sensors Proximity sensing Nondestructive testing Material property analysis Fuel/battery cell condition monitoring FUNCTIONAL BLOCK DIAGRAM MCLK AVDD DVDD DDS CORE DAC

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AD5934.pdf Datasheet