參數資料
型號： AD5933
廠商： Analog Devices, Inc.
英文描述： 1 MSPS 12-Bit Impedance Converter, Network Analyzer
中文描述： 1 MSPS的12位阻抗轉換器，網絡分析儀
文件頁數： 1/20頁
文件大?。?/td> 553K
代理商： AD5933
1 MSPS 12-Bit Impedance Converter,
Network Analyzer
Preliminary Technical Data
AD5933
FEATURES
50KHz Max Excitation Output
Impedance Range .1k-20M, 12 Bit Resolution
Selectable System Clock from the following:
PLL, RC Oscillator, External Clock
DSP Real and Imaginary Calculation (FFT)
3V Power Supply,
Programmable Sinewave Output
Frequency Resolution 27 Bits (<0.1Hz)
Frequency Sweep Capability
12 Bit Sampling ADC
ADC Sampling 1MSPS, INL +/- 1LSB Max.
On Chip Temp Sensor allows +/-2 oC accuracy
Serial
I2
C Loading
Temperature Range –40-125oC 16 SSOP
APPLICATIONS
Complex Impedance Measurement
Impedance Spectrometry
Biomedical and Automotive Sensors
Proximity Sensors
FFT Processing
GENERAL DESCRIPTION
The AD5933 is a high precision impedance converter system
solution which combines an on board frequency generator with
a 12 Bit 1MSPS 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 FFT processed by an on-board DSP
engine. The FFT algorithm returns a Real (R) and Imaginary (I)
data word, allowing impedance to be conveniently calculated.
The impedance magnitude and phase is easily calculated using
the following equations:
2
Phase = Tan (I/R)
Rev.
PrA
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
Tel: 781.329.4700
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