深圳市中立信电子科技有限公司

AD5934YRSZ

250 kSPS, 12-Bit Impedance Converter,  Network Analyzer

数据采集ADC/DAC – IC 12bit 250ksps Impedance Cnvtr

GENERAL DESCRIPTION AD5934YRSZ

The AD5934 is a high precision impedance converter system

solution that combines an on-board frequency generator with a

12-bit, 250 kSPS, analog-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

FEATURES AD5934YRSZ

Programmable output peak-to-peak excitation voltage to a

maximum frequency of 100 kHz

Programmable frequency sweep capability with serial I2C

interface

Frequency resolution of 27 bits (<0.1 Hz)

Impedance measurement range from 1 kΩ to 10 MΩ

Capable of measuring 100 Ω to 1 kΩ with additional circuitry

Phase measurement capability

System accuracy of 0.5%

2.7 V to 5.5 V power supply operation

Temperature range: −40°C to +125°C

16-lead SSOP package

APPLICATIONS AD5934YRSZ

Electrochemical analysis

Bioelectrical impedance analysis

Impedance spectroscopy

Complex impedance measurement

Corrosion monitoring and protection equipment

Biomedical and automotive sensors

Proximity sensing

Nondestructive testing

Material property analysis

Fuel/battery cell condition monitoring