Overview
The AD5934YRSZ from Analog Devices Inc. is a high precision impedance converter system solution. It integrates an on-board frequency generator with a 12-bit, 250 kSPS analog-to-digital converter (ADC). This device is designed to excite an external complex impedance with a known frequency and measure the response signal using the on-board ADC. The system processes the signal using a discrete Fourier transform (DFT) algorithm, providing real and imaginary data-words at each output frequency. The AD5934YRSZ is available in a 16-lead SSOP package and operates over a temperature range of -40°C to +125°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | 5.5 | V | ||
| Operating Current (Normal Mode) | 10 | 15 | mA | VDD = 3.3 V | |
| Operating Current (Normal Mode) | 17 | 25 | mA | VDD = 5.5 V | |
| Operating Current (Standby Mode) | 7 | 9 | mA | VDD = 3.3 V / 5.5 V | |
| Operating Current (Power-Down Mode) | 0.7 | 5 | µA | VDD = 3.3 V / 5.5 V | |
| Temperature Range | -40 | 125 | °C | ||
| Frequency Resolution | 27 bits (< 0.1 Hz) | ||||
| Impedance Measurement Range | 1 kΩ | 10 MΩ | |||
| ADC Resolution | 12 bits | ||||
| ADC Sampling Rate | 250 kSPS |
Key Features
- Programmable output peak-to-peak excitation voltage up 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, with the capability to measure 100 Ω to 1 kΩ with additional circuitry.
- Phase measurement capability.
- System accuracy of 0.5%.
- Operates on a 2.7 V to 5.5 V power supply.
- Available in a 16-lead SSOP package.
- Internal temperature sensor.
Applications
- 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.
Q & A
- What is the AD5934YRSZ used for?
The AD5934YRSZ is a high precision impedance converter system used for measuring complex impedances in various applications such as electrochemical analysis, bioelectrical impedance analysis, and impedance spectroscopy.
- What is the frequency resolution of the AD5934YRSZ?
The frequency resolution of the AD5934YRSZ is 27 bits, which is less than 0.1 Hz.
- What is the impedance measurement range of the AD5934YRSZ?
The impedance measurement range of the AD5934YRSZ is from 1 kΩ to 10 MΩ, with the capability to measure 100 Ω to 1 kΩ with additional circuitry.
- What is the power supply range for the AD5934YRSZ?
The AD5934YRSZ operates on a power supply range of 2.7 V to 5.5 V.
- What is the temperature range for the AD5934YRSZ?
The operating temperature range for the AD5934YRSZ is from -40°C to +125°C.
- What package type is the AD5934YRSZ available in?
The AD5934YRSZ is available in a 16-lead SSOP package.
- Does the AD5934YRSZ have phase measurement capability?
Yes, the AD5934YRSZ has phase measurement capability.
- What is the system accuracy of the AD5934YRSZ?
The system accuracy of the AD5934YRSZ is 0.5%.
- Can the AD5934YRSZ be used for biomedical applications?
Yes, the AD5934YRSZ can be used for biomedical applications, including bioelectrical impedance analysis and biomedical sensors.
- Does the AD5934YRSZ support I2C interface?
Yes, the AD5934YRSZ supports a serial I2C interface for programmable frequency sweep capability.
