Overview
The AD5933YRSZ, produced by Analog Devices Inc., is a high-precision impedance converter system solution. It integrates an on-board frequency generator with a 12-bit, 1 MSPS (mega samples per second) analog-to-digital converter (ADC). This device is designed to measure the impedance of external complex loads by exciting them with a known frequency and then processing the response signal using a discrete Fourier transform (DFT) algorithm. The AD5933YRSZ is particularly useful in applications requiring precise impedance measurements over a range of frequencies.
Key Specifications
| Parameter | Unit | Min | Typ | Max | Test Conditions/Comments |
|---|---|---|---|---|---|
| VDD | V | 2.7 | 5.5 | Digital Supply Voltage | |
| Resolution | Bits | 12 | Analog-to-Digital Converter Resolution | ||
| Sampling Rate | MSPS | 1 | ADC Throughput Rate | ||
| Signal-to-Noise Ratio | dB | 60 | Receive Stage | ||
| Total Harmonic Distortion | dB | -52 | Receive Stage | ||
| Spurious-Free Dynamic Range (Wide Band) | dB | -56 | 0 MHz to 1 MHz | ||
| Spurious-Free Dynamic Range (Narrow Band) | dB | -85 | ±5 kHz | ||
| Input Leakage Current | nA | 1 | To VIN pin | ||
| Input Capacitance | pF | 0.01 | Pin capacitance between VIN and GND | ||
| Operating Temperature Range | °C | -40 | 125 | Extended Industrial (Y Grade) |
Key Features
- On-Board Frequency Generator: Allows for the excitation of external complex impedances with a known frequency.
- 12-Bit, 1 MSPS ADC: High-resolution analog-to-digital conversion for precise measurements.
- Discrete Fourier Transform (DFT) Processing: On-board DSP engine processes the response signal to provide real and imaginary data-words.
- I2C Interface: Enables easy communication and data retrieval via a serial interface.
- Multiple Power Supply Options: Operates with a digital supply voltage (VDD) ranging from 2.7 V to 5.5 V.
- Temperature Sensor: Built-in temperature sensor with ±2.0 °C accuracy and 0.03 °C resolution.
- Low Power Consumption: Normal mode current consumption of 10 mA to 15 mA at VDD = 3.3 V and 17 mA to 25 mA at VDD = 5.5 V.
Applications
- Impedance Analysis: Ideal for measuring the impedance of complex loads in various frequency ranges.
- Network Analysis: Can be used as a network analyzer to characterize electrical networks.
- Medical Devices: Suitable for impedance measurements in medical devices such as bioimpedance analyzers.
- Industrial Automation: Used in industrial automation for monitoring and controlling processes that involve impedance measurements.
- Research and Development: Useful in R&D environments for characterizing materials and components.
Q & A
- What is the primary function of the AD5933YRSZ?
The AD5933YRSZ is a high-precision impedance converter system that measures the impedance of external complex loads by exciting them with a known frequency and processing the response signal.
- What is the resolution and sampling rate of the ADC in the AD5933YRSZ?
The ADC has a resolution of 12 bits and a sampling rate of 1 MSPS.
- What is the operating voltage range of the AD5933YRSZ?
The device operates with a digital supply voltage (VDD) ranging from 2.7 V to 5.5 V.
- How does the AD5933YRSZ communicate with external devices?
The AD5933YRSZ uses an I2C interface for communication and data retrieval.
- What is the accuracy of the built-in temperature sensor?
The built-in temperature sensor has an accuracy of ±2.0 °C and a resolution of 0.03 °C.
- What are some common applications of the AD5933YRSZ?
Common applications include impedance analysis, network analysis, medical devices, industrial automation, and research and development.
- What is the typical power consumption of the AD5933YRSZ?
The typical power consumption is 10 mA to 15 mA at VDD = 3.3 V and 17 mA to 25 mA at VDD = 5.5 V in normal mode.
- What is the operating temperature range of the AD5933YRSZ?
The operating temperature range is -40°C to +125°C (Extended Industrial Y Grade).
- How does the AD5933YRSZ process the response signal from the impedance?
The response signal is processed using a discrete Fourier transform (DFT) algorithm by the on-board DSP engine.
- What are the key specifications for the signal-to-noise ratio and total harmonic distortion?
The signal-to-noise ratio is 60 dB, and the total harmonic distortion is -52 dB.
