Overview
The ADS8321EB/250G4, produced by Texas Instruments, is a 16-bit sampling analog-to-digital converter (ADC) known for its high speed and ultra-low power consumption. This device operates within a supply range of 4.75V to 5.25V and is designed for applications requiring high precision and low power dissipation. The ADS8321EB/250G4 features a synchronous serial (SPI/SSI compatible) interface and a differential input, making it suitable for a variety of applications including battery-operated systems, remote data acquisition, and isolated data acquisition.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Full-Scale Input Span | - | - | VREF | V |
| Absolute Input Range | -0.1 VCC + 0.1 | - | - | V |
| Sampling Rate | - | - | 100 kHz | - |
| Power Consumption at 100 kHz | - | 4.5 mW | - | mW |
| Power Consumption at 10 kHz | - | 1 mW | - | mW |
| Power Down Current | - | 3 µA | - | µA |
| Reference Voltage Range | 0.5 VCC/2 | - | - | V |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Bipolar Input Range: Supports both single-ended and differential input configurations.
- High Speed Sampling: Up to 100 kHz sampling rate.
- Micro Power Consumption: Low power dissipation, with 4.5 mW at 100 kHz and 1 mW at 10 kHz.
- Power Down Mode: Low current consumption in power-down mode, typically 3 µA.
- Serial Interface: SPI/SSI compatible synchronous serial interface.
- Small Package: Available in an MSOP-8 package.
- Pin Compatibility: Pin-compatible with ADS7816 and ADS7822.
Applications
- Battery Operated Systems: Ideal for portable and battery-operated systems due to its low power consumption.
- Remote Data Acquisition: Suitable for remote data acquisition modules.
- Isolated Data Acquisition: Used in isolated data acquisition systems.
- Simultaneous Multi-Channel Systems: Applicable in simultaneous multi-channel systems.
- Industrial Controls: Used in industrial control systems.
- Robotics: Suitable for robotics applications.
- Vibration Analysis: Used in vibration analysis systems.
Q & A
- What is the resolution of the ADS8321EB/250G4?
The ADS8321EB/250G4 has a resolution of 16 bits. - What is the sampling rate of the ADS8321EB/250G4?
The sampling rate can go up to 100 kHz. - How much power does the ADS8321EB/250G4 consume at 100 kHz?
The power consumption at 100 kHz is typically 4.5 mW. - What is the power-down current of the ADS8321EB/250G4?
The power-down current is typically 3 µA. - What is the operating temperature range of the ADS8321EB/250G4?
The operating temperature range is from -40°C to 85°C. - What types of input configurations does the ADS8321EB/250G4 support?
The device supports both single-ended and differential input configurations. - What is the reference voltage range for the ADS8321EB/250G4?
The reference voltage range is from 0.5 V to VCC/2. - Is the ADS8321EB/250G4 pin-compatible with other models?
Yes, it is pin-compatible with ADS7816 and ADS7822. - What package is the ADS8321EB/250G4 available in?
The device is available in an MSOP-8 package. - What interface does the ADS8321EB/250G4 use for data transfer?
The device uses a SPI/SSI compatible synchronous serial interface.
