Key Features of NADC24
NADC24 integrates various advanced components to ensure high precision and stable signal conversion performance:
- Low-Noise Programmable Gain Amplifier (PGA): Supports up to 128x gain, effectively amplifying weak signals while maintaining low noise performance, suitable for precision measurements.
- Internal Reference Voltage: Provides stable 1.2V or 2.4V reference sources to ensure linearity and accuracy in digital conversion.
- Δ-Σ Modulator and Digital Filter: Utilizes advanced Delta-Sigma architecture and digital filtering techniques to effectively reduce quantization noise, supporting multiple digital filter modes (e.g., sinc filters) to meet diverse application needs.
- Built-in Oscillator: Integrates a 49.152 MHz high-stability oscillator, eliminating the need for external oscillators and simplifying system design.
Highly Integrated Features and Flexibility
The NADC24 series offers the following features in terms of integration and versatility:
- Multi-Channel Input Multiplexer: Supports up to 8 single-ended channels or 4 differential channels, enabling simultaneous measurement of multiple signal sources.
- Built-in Digital-to-Analog Converter (DAC, optional): Provides a 12-bit precision DAC for generating reference or control signals. (only with NADC24D004TA)
- Built-in Temperature Sensor: Can be used for system temperature compensation or monitoring, enhancing device reliability.
- Standardized Interface: Supports SPI communication interface, facilitating integration with microcontrollers or other digital systems.
Outstanding Performance
NADC24 delivers the following performance metrics, making it suitable for a wide range of applications:
- Maximum Data Rate: Up to 96 kSPS, supporting high-speed data acquisition applications.
- Effective Number of Bits (ENOB): Up to 22 bits, offering industry-leading resolution.
- Low Power Consumption: Operating current of only 1.38 mA, ideal for battery-powered devices.
- Operating Voltage and Temperature Range: Suitable for 2.7V to 3.6V voltage range and -40°C to 105°C temperature range, adaptable to harsh industrial environments.
Applications
The high precision and integration of NADC24 make it highly valuable in the following fields:[1]
- Precision Small Signal Measurement: Suitable for voltage sampling, electronic scales, and weak signal processing in medical devices.
- Industrial Control and Automation: Used for digitizing sensor data, such as pressure sensors, temperature sensors, and flow sensors.
- Audio and Acoustic Analysis: High data rate and low noise performance support high-quality audio signal processing.
- Portable Devices and IoT: Low power consumption makes it ideal for battery-powered sensing devices or edge computing equipment.
Rich Resources
Calibration and Measurement Tools for Power Measurement[1]
- Real-time measurement data reporting
- Real-time display of voltage and current curves
- Supports calibration adjustments
- Supports harmonic analysis
High Sample Rate - 96K
Strength of NADC24
| ADC Indicator | Nuvoton NADC24 | Other 24-bits ADC |
| Operating Voltage Range | 2.5V ~ 3.6V | 2.5V ~ 3.6V |
| Operating Temperature Range | -40° ~ 105° | -40° ~ 85° |
| ENOB (Effective Number of Bits) | > 22 Bits (10SPS) | 18~20 Bits |
| SPS (Sample Rate) | 10 ~ 96K | 1K ~ 15K |
| Offset Error (μV) | < ±2000 | 3000~5000 |
| Internal VREF | 1.2 V / 2.4 V | 2.4/3.0/3.3 V |
The NADC24 series offers various packaging options, allowing developers to choose the right product for their application needs:
- NADC24D003FA: Features TSSOP20 packaging, suitable for space-constrained designs.
- NADC24D004TA: Features QFN32 packaging, offering more I/O interface options.
Conclusion
As a highly integrated precision ADC, the NADC24 series not only delivers outstanding performance but also reduces PCB design complexity and component costs, empowering engineers to achieve innovative applications. Its powerful feature set and flexible configuration make it an ideal choice for industrial, consumer, and medical fields.
[1] NADC24 Web