AD5933 Impedance Converter Development Board

Explore impedance versus frequency with an AD5933 development module combining signal generation and digital response processing.

✅ Sweep a range of test frequencies - Programmable excitation provides the described frequency-scan function for a suitable test circuit.

✅ Obtain real and imaginary response data - On-chip DFT processing supplies values used by host calculations for impedance and phase.

✅ Integrate with a controller - An I2C connection provides the digital control and data interface.

Build the measurement around calibration

Impedance changes with frequency, so a sweep can show behaviour that a single resistance reading misses. The module excites a suitable circuit and returns response data for the host to process.

Choose the analogue configuration and calibrate for the actual impedance range and frequency sweep. This is a development board, not a ready calibrated network analyser, and it must not be connected to powered or high-voltage circuits outside its limits.

Technical details

• Device: AD5933
• ADC described: 12 bit, 1 MSPS
• Excitation frequency: up to 100 kHz
• Interface: I2C
• Impedance range described: 1 kΩ-10 MΩ with suitable setup
• Lower-impedance work requires an appropriate additional front end

Add a programmable impedance experiment to your electronics bench.