EVAL-AD5933EBZ Datasheet, PDF (13/32 Pages) Analog Devices – Evaluation Board for the 1 MSPS 12-Bit Impedance Converter Network Analyzer

Preliminary Technical Data
Each data entry corresponds to a single measurement (frequency)
point. Therefore, if you program 511 points as the value for the
number of increments, the array contains a single column of
data with 512 data points, starting at the start frequency value
and ending at the stop frequency value. The stop frequency
value is determined by
Start Frequency + (Number of Increments × Delta Frequency)
Graphs of the impedance profile vs. frequency and the phase profile
vs. frequency appear in the main dialog box of the evaluation
software after the sweep has completed. The user can switch
between the impedance (|Z|) profile and phase (Ø) profile by
clicking the corresponding tabs. The Absolute Impedance |Z|
tab shows how the impedance being analyzed (ZUNKNOWN) varies
across the programmed frequency range. To view how the
phase varies across the network being analyzed, click the
Impedance Phase Ø tab (see Figure 19).
EVAL-AD5933EB
FREQUENTLY ASKED QUESTIONS
ABOUT INSTALLATION
Q: How can I confirm that the hardware has been installed
correctly in my computer?
A: Right-click My Computer and then left-click Properties. On
the Hardware tab, click Device Manager.
Figure 19. The Impedance Phase Ø Tab on the Main Dialog Box
(the Phase of a 200 kΩ Resistor (0°) Is Displayed)
Note that the phase measured by the AD5933 takes into account
the phase introduced through the entire signal path, that is, the
phase introduced through the output amplifiers, the receive I-V
amplifier, the low-pass filter, etc., along with the phase through
the impedance (ZØ) being analyzed, which is connected between
VOUT and VIN (Pin 6 and Pin 5 of the AD5933). The phase of the
system must be calibrated using a resistor before any subsequent
impedance phase (ZØ) measurement can be calculated. You need
to perform the calibration with a resistor in the evaluation
software in order to calibrate the system phase correctly. Refer
to the Impedance Measurement Tips section for more details.
Figure 20. System Properties
Scroll to Universal Serial Bus controllers and expand the
directory root (see Figure 21). Figure 21 indicates what to
expect when the AD5933 evaluation board is installed correctly
and the evaluation board and USB cable are connected correctly
to the computer. The root directory is refreshed after the USB
cable is unplugged from the evaluation board, and then the
AD5933 evaluation kit icon is removed from the main root.
Rev. PrC | Page 13 of 32