Overview
The ADS8698IDBT is a high-performance, 18-bit, 8-channel, successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. Designed for precision measurement applications, this ADC integrates a low-drift internal reference and a high-speed interface, making it ideal for industrial automation, medical instrumentation, and data acquisition systems. Its market positioning targets engineers and designers seeking high accuracy, low power consumption, and ease of integration in multi-channel systems. The ADS8698IDBT stands out for its robust performance, wide input range, and flexible power-down modes, ensuring competitive advantages in demanding applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Resolution | 18 | bits | |
| Channels | 8 | Single-ended | |
| Sampling Rate | 500 | kSPS | |
| Input Voltage Range | ±10.24 | V | Programmable |
| Power Supply | 4.75 to 5.25 | V | Single supply |
| Interface | SPI | High-speed | |
| Operating Temperature | -40 to +105 | °C | |
| Package | TSSOP-38 | ||
| Internal Reference | 2.5 | V | Low drift |
| Power Consumption | 35 | mW | Typical |
Key Features
- High Resolution: 18-bit resolution ensures precise measurement for critical applications.
- Wide Input Range: Programmable input range of ±10.24V accommodates diverse signal levels.
- Low Power Consumption: Optimized for power-sensitive designs with typical consumption of 35mW.
- Integrated Reference: Internal 2.5V reference minimizes external components and enhances stability.
- High-Speed SPI Interface: Supports fast data transfer for real-time processing.
- Flexible Power-Down Modes: Reduces power consumption during idle periods.
Applications
The ADS8698IDBT is widely used in applications requiring high accuracy and multi-channel data acquisition. Key application areas include:
- Industrial Automation: Precision monitoring and control of sensors and actuators.
- Medical Instrumentation: Accurate signal acquisition in diagnostic and monitoring devices.
- Data Acquisition Systems: High-resolution measurement in test and measurement equipment.
- Energy Management: Monitoring of power systems and renewable energy sources.
- Automotive Electronics: Reliable signal processing in vehicle control systems.
Q & A
1. What is the resolution of the ADS8698IDBT?
The ADS8698IDBT offers 18-bit resolution, ensuring high-precision measurements.
2. How many channels does this ADC support?
It supports 8 single-ended input channels.
3. What is the maximum sampling rate?
The maximum sampling rate is 500 kSPS (kilo-samples per second).
4. What is the input voltage range?
The input voltage range is programmable, with a maximum of ±10.24V.
5. What type of interface does it use?
It uses a high-speed SPI interface for data communication.
6. Does it have an internal reference?
Yes, it includes a low-drift 2.5V internal reference.
7. What is the power supply requirement?
It operates on a single power supply of 4.75V to 5.25V.
8. What is the operating temperature range?
It operates reliably from -40°C to +105°C.
9. What package does it come in?
It is available in a TSSOP-38 package.
10. What are the typical power consumption levels?
The typical power consumption is 35mW.
