Overview
The ADS7828E/250G4, produced by Texas Instruments, is a single-supply, low-power, 12-bit data acquisition device. It features a serial I²C interface and an 8-channel multiplexer. The device includes a sample-and-hold amplifier and an internal, asynchronous clock. This combination makes it ideal for applications requiring the A/D converter to be close to the input source in remote locations and for applications requiring isolation. The ADS7828E/250G4 is available in a TSSOP-16 package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 8 | |
| Sampling Rate | 50 kHz | |
| Supply Voltage | 2.7V to 5V | V |
| Internal Reference Voltage | 2.5V | V |
| I²C Interface Modes | Standard, Fast, High-Speed | |
| Package Type | TSSOP-16 | |
| Operating Temperature Range | -40°C to +85°C | °C |
| Quiescent Current (High Speed Mode) | 225 µA (at 2.7V), 750 µA (at 5V) | µA |
| Power Dissipation (High Speed Mode) | 675 µW (at 2.7V), 3.75 mW (at 5V) | µW/mW |
Key Features
- 8-channel multiplexer
- 50 kHz sampling rate
- No missing codes
- Operation from 2.7V to 5V
- Internal 2.5V reference voltage
- I²C interface supporting Standard, Fast, and High-Speed modes
- TSSOP-16 package
Applications
- Voltage-supply monitoring
- Isolated data acquisition
- Transducer interfaces
- Battery-operated systems
- Remote data acquisition
Q & A
- What is the resolution of the ADS7828E/250G4?
The resolution of the ADS7828E/250G4 is 12 bits.
- How many channels does the ADS7828E/250G4 have?
The ADS7828E/250G4 has 8 channels.
- What is the sampling rate of the ADS7828E/250G4?
The sampling rate of the ADS7828E/250G4 is 50 kHz.
- What is the operating voltage range of the ADS7828E/250G4?
The operating voltage range is from 2.7V to 5V.
- Does the ADS7828E/250G4 have an internal reference voltage?
Yes, it has an internal 2.5V reference voltage.
- What types of I²C interface modes does the ADS7828E/250G4 support?
The ADS7828E/250G4 supports Standard, Fast, and High-Speed I²C interface modes.
- In what package is the ADS7828E/250G4 available?
The ADS7828E/250G4 is available in a TSSOP-16 package.
- What is the operating temperature range of the ADS7828E/250G4?
The operating temperature range is from -40°C to +85°C.
- What are some typical applications of the ADS7828E/250G4?
Typical applications include voltage-supply monitoring, isolated data acquisition, transducer interfaces, battery-operated systems, and remote data acquisition.
- How does the ADS7828E/250G4 manage power consumption?
The ADS7828E/250G4 has low power consumption, with quiescent current as low as 225 µA in High Speed Mode at 2.7V, and it also features a power-down mode to minimize power usage when not in operation.
