Overview
The ADS7828EB/250 is a single-supply, low-power, 12-bit data acquisition device manufactured by Texas Instruments. It features a serial I2C interface and an 8-channel multiplexer, making it ideal for various applications requiring precise analog-to-digital conversion. The device operates within a voltage range of 2.7V to 5V and includes an internal 2.5V reference voltage. Its low power consumption and support for standard, fast, and high-speed I2C modes make it suitable for remote data acquisition and battery-operated systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 | Bits |
| Sampling Rate | 50 kHz | |
| Supply Voltage Range | 2.7V to 5V | V |
| Internal Reference Voltage | 2.5V | V |
| Integral Linearity Error | ±1.0 LSB (ADS7828EB) | LSB |
| Differential Linearity Error | ±0.5 LSB (ADS7828EB) | LSB |
| Offset Error | ±3 LSB (ADS7828EB) | LSB |
| Gain Error | ±4 LSB (ADS7828EB) | LSB |
| Quiescent Current (High Speed Mode) | 225 µA | µA |
| Power Dissipation (High Speed Mode) | 675 µW | µW |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | TSSOP-16 |
Key Features
- 8-channel multiplexer for multiple input channel selection
- Serial I2C interface supporting standard, fast, and high-speed modes
- No missing codes for accurate conversion
- Internal 2.5V reference voltage for stable operation
- Low power consumption with micropower operation
- Sample-and-hold amplifier and asynchronous clock for precise conversions
- Available in TSSOP-16 package for compact design
Applications
- Voltage-supply monitoring
- Isolated data acquisition
- Transducer interfaces
- Battery-operated systems
- Remote data acquisition
Q & A
- What is the resolution of the ADS7828EB?
The ADS7828EB has a resolution of 12 bits.
- What is the sampling rate of the ADS7828EB?
The sampling rate of the ADS7828EB is 50 kHz.
- What is the supply voltage range for the ADS7828EB?
The supply voltage range for the ADS7828EB is 2.7V to 5V.
- Does the ADS7828EB have an internal reference voltage?
- What types of I2C modes does the ADS7828EB support?
The ADS7828EB supports standard, fast, and high-speed I2C modes.
- What is the typical quiescent current in high-speed mode for the ADS7828EB?
The typical quiescent current in high-speed mode for the ADS7828EB is 225 µA.
- What is the operating temperature range for the ADS7828EB?
The operating temperature range for the ADS7828EB is –40°C to +85°C.
- In what package type is the ADS7828EB available?
The ADS7828EB is available in a TSSOP-16 package.
- What are some common applications for the ADS7828EB?
Common applications include voltage-supply monitoring, isolated data acquisition, transducer interfaces, battery-operated systems, and remote data acquisition.
- How many devices with the same pre-set code can be connected on the same I2C bus?
A maximum of four devices with the same pre-set code can be connected on the same I2C bus.
