Overview
The ADS8321EB/250, produced by Texas Instruments, is a 16-bit sampling analog-to-digital converter (ADC) designed for high-speed and low-power applications. This device operates within a supply range of 4.75V to 5.25V and is capable of converting analog signals at a rate of up to 100,000 samples per second. The ADS8321EB/250 features a synchronous serial (SPI/SSI compatible) interface and a differential input, making it suitable for a variety of data acquisition tasks. Its ultra-low power consumption and small size make it ideal for portable and battery-operated systems.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Sampling Rate | - | - | 100kHz | - |
| Supply Voltage | 4.75V | - | 5.25V | V |
| Power Consumption at 100kHz | - | - | 4.5mW | mW |
| Power Consumption at 10kHz | - | - | <1mW | mW |
| Integral Linearity Error | ±0.012% | - | ±0.018% | % of FSR |
| Offset Error | ±0.2mV | - | ±1mV | mV |
| Gain Error | ±0.024% | - | ±0.05% | % |
| Operating Temperature Range | -40°C | - | 85°C | °C |
| Package Type | - | - | 8-TSSOP, 8-MSOP | - |
Key Features
- Bipolar Input Range: Supports differential, pseudo-differential, and single-ended inputs.
- High-Speed Sampling: Capable of sampling at rates up to 100kHz.
- MicroPower Consumption: Low power consumption, with less than 4.5mW at 100kHz and less than 1mW at 10kHz.
- Synchronous Serial Interface: SPI/SSI compatible interface for data transfer.
- External Reference Voltage: Can be set to any level between 500mV and VCC/2.
- Small Size: Available in 8-TSSOP and 8-MSOP packages, making it suitable for compact designs.
Applications
- Portable and Battery-Operated Systems: Ideal due to its ultra-low power consumption and small size.
- Remote Data Acquisition Modules: Suitable for remote sensing and data collection applications.
- Simultaneous Multi-Channel Systems: Can be used in systems requiring multiple channels of analog-to-digital conversion.
- Isolated Data Acquisition: Appropriate for applications requiring isolation between the analog and digital domains.
Q & A
- What is the resolution of the ADS8321EB/250?
The resolution of the ADS8321EB/250 is 16 bits.
- What is the maximum sampling rate of the ADS8321EB/250?
The maximum sampling rate is 100kHz.
- What is the supply voltage range for the ADS8321EB/250?
The supply voltage range is from 4.75V to 5.25V.
- How much power does the ADS8321EB/250 consume at 100kHz?
The power consumption at 100kHz is less than 4.5mW.
- What types of input does the ADS8321EB/250 support?
The device supports differential, pseudo-differential, and single-ended inputs.
- What is the operating temperature range of the ADS8321EB/250?
The operating temperature range is from -40°C to 85°C.
- What package types are available for the ADS8321EB/250?
The device is available in 8-TSSOP and 8-MSOP packages.
- Does the ADS8321EB/250 require an external reference voltage?
Yes, it requires an external reference voltage that can be set between 500mV and VCC/2.
- What interface does the ADS8321EB/250 use for data transfer?
The device uses a synchronous serial (SPI/SSI compatible) interface.
- Is the ADS8321EB/250 suitable for battery-operated systems?
Yes, it is ideal for battery-operated systems due to its ultra-low power consumption.
