Overview
The AD7863BRZ-10 is a high-speed, low-power, dual 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for simultaneous sampling and conversion of two channels, making it ideal for applications that require precise and synchronized data acquisition. The AD7863 operates from a single 5 V supply and features an internal 2.5 V reference, two track/hold amplifiers, and a high-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 175 kSPS |
| Analog Input Range | ±10 V (AD7863-10), ±2.5 V (AD7863-3), 0 V to 2.5 V (AD7863-2) |
| Overvoltage Protection | ±17 V, ±7 V, or +7 V respectively |
| Supply Voltage | 5 V |
| Power Consumption | 70 mW typical |
| Package Type | 28-Lead SOIC (Wide), SSOP |
| Operating Temperature Range | –40°C to +85°C |
| Conversion Time | 5.2 μs |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information.
- Internal 2.5 V reference and high-speed parallel interface.
- Automatic power-down mode for battery-powered or portable applications.
- High dynamic performance including harmonic distortion and signal-to-noise ratio specifications.
- Overvoltage protection on analog inputs to prevent damage.
- Available in 28-lead SOIC (Wide) and SSOP packages.
Applications
The AD7863BRZ-10 is suitable for a variety of applications that require high-speed, simultaneous sampling of multiple analog signals. These include:
- Data acquisition systems.
- Medical imaging and diagnostic equipment.
- Aerospace and defense systems.
- Industrial control and automation.
- Portable and battery-powered devices.
Q & A
- What is the resolution of the AD7863BRZ-10?
The AD7863BRZ-10 has a resolution of 14 bits. - What is the sampling rate of the AD7863BRZ-10?
The sampling rate is 175 kSPS. - What are the available analog input ranges for the AD7863?
The available analog input ranges are ±10 V, ±2.5 V, and 0 V to 2.5 V. - What is the supply voltage for the AD7863BRZ-10?
The supply voltage is 5 V. - How much power does the AD7863BRZ-10 typically consume?
The typical power consumption is 70 mW. - What types of packages are available for the AD7863?
The AD7863 is available in 28-Lead SOIC (Wide) and SSOP packages. - What is the conversion time for the AD7863BRZ-10?
The conversion time is 5.2 μs. - Does the AD7863 have overvoltage protection?
Yes, the AD7863 has overvoltage protection on the analog inputs. - What is the operating temperature range for the AD7863BRZ-10?
The operating temperature range is –40°C to +85°C. - How does the automatic power-down mode work?
The part automatically goes into power-down once conversion is complete and wakes up before the next conversion cycle, making it ideal for battery-powered or portable applications.
