Overview
The AD7829-1, produced by Analog Devices Inc., is a high-speed, 8-channel, microprocessor-compatible, 8-bit analog-to-digital converter (ADC). This component is designed for high-throughput applications, offering a maximum conversion rate of 2 million samples per second (MSPS). It features an on-chip 2.5V reference, a track-and-hold amplifier, and a 420 ns conversion time, making it suitable for various data acquisition and signal processing tasks. The AD7829-1 operates from a single supply voltage of either 3V ± 10% or 5V ± 10%, and it includes automatic power-down at the end of each conversion to conserve power.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 |
| Resolution | 8-bit |
| Conversion Rate | Up to 2 MSPS |
| Conversion Time | 420 ns |
| Supply Voltage | 3V ± 10%, 5V ± 10% |
| Input Range | 0V to 2V (VDD = 3V), 0V to 2.5V (VDD = 5V) |
| On-chip Reference | 2.5V (2% tolerance) |
| Package Type | 28-Lead SOIC (Wide), 28-Lead TSSOP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- High-speed conversion with a maximum throughput of 2 MSPS.
- On-chip 2.5V reference with 2% tolerance.
- Track-and-hold amplifier for accurate signal capture.
- Automatic power-down at the end of each conversion to reduce power consumption.
- Flexible parallel interface with EOC (End of Conversion) pulse for easy interfacing with microprocessors and DSPs.
- Input ranges adjustable from AGND to VDD using the VMID pin.
Applications
- Data acquisition systems.
- DSP front ends.
- Disk drives.
- Mobile communication systems.
- Subsampling applications.
Q & A
- What is the maximum conversion rate of the AD7829-1?
The AD7829-1 has a maximum conversion rate of up to 2 million samples per second (MSPS). - What are the supply voltage options for the AD7829-1?
The AD7829-1 can operate from a single supply voltage of either 3V ± 10% or 5V ± 10%. - What is the conversion time of the AD7829-1?
The conversion time of the AD7829-1 is 420 ns. - Does the AD7829-1 have an on-chip reference?
Yes, the AD7829-1 includes an on-chip 2.5V reference with a 2% tolerance. - How many analog input channels does the AD7829-1 have?
The AD7829-1 has eight analog input channels. - What is the operating temperature range of the AD7829-1?
The operating temperature range of the AD7829-1 is -40°C to +85°C. - Does the AD7829-1 support automatic power-down?
Yes, the AD7829-1 supports automatic power-down at the end of each conversion. - What types of packages are available for the AD7829-1?
The AD7829-1 is available in 28-Lead SOIC (Wide) and 28-Lead TSSOP packages. - What is the input range for the AD7829-1 when using a 3V supply?
When using a 3V supply, the input range is 0V to 2V. - What is the input range for the AD7829-1 when using a 5V supply?
When using a 5V supply, the input range is 0V to 2.5V.
