Overview
The AD7863BR-3, produced by Analog Devices Inc., is a high-speed, low-power, dual 14-bit analog-to-digital converter (ADC). This component is designed for simultaneous sampling and conversion of two channels, making it ideal for applications requiring precise and synchronized data acquisition. The AD7863BR-3 operates from a single 5 V supply and features automatic power-down modes, which are beneficial for battery-powered or portable devices. It includes two complete ADC functions, each with a two-channel input multiplexer, and provides a high-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14-bit |
| Sampling Rate | 175 kSPS |
| Supply Voltage | 5 V |
| Power Consumption | 70 mW (typical) |
| Analog Input Range | ±2.5 V (AD7863-3) |
| Overvoltage Protection | Up to ±7 V |
| Conversion Time | 5.2 μs |
| Package | 28-Lead SOIC_W, SSOP |
| Operating Temperature | –40°C to +85°C |
Key Features
- Simultaneous sampling and conversion of two channels
- Automatic power-down mode for low power consumption
- High-speed parallel interface for easy connection to microprocessors and digital signal processors
- Internal 2.5 V reference and track-and-hold amplifiers
- Overvoltage protection on analog inputs up to ±7 V
- Two operating modes: high sampling mode and auto sleep mode
Applications
The AD7863BR-3 is suitable for a variety of applications, including:
- Battery-powered or portable devices due to its low power consumption
- Medical devices requiring simultaneous sampling of multiple channels
- Aerospace and defense systems needing high-speed and precise data acquisition
- Industrial control systems and data acquisition systems
- Automotive systems requiring robust and reliable ADCs
Q & A
- What is the resolution of the AD7863BR-3 ADC?
The AD7863BR-3 has a resolution of 14 bits. - What is the sampling rate of the AD7863BR-3?
The sampling rate is 175 kSPS. - What is the supply voltage for the AD7863BR-3?
The supply voltage is 5 V. - How much power does the AD7863BR-3 typically consume?
The typical power consumption is 70 mW. - What is the analog input range for the AD7863-3 model?
The analog input range is ±2.5 V. - What is the conversion time for the AD7863BR-3?
The conversion time is 5.2 μs. - What types of packages are available for the AD7863BR-3?
The AD7863BR-3 is available in 28-Lead SOIC_W and SSOP packages. - What is the operating temperature range for the AD7863BR-3?
The operating temperature range is –40°C to +85°C. - Does the AD7863BR-3 have overvoltage protection?
Yes, it has overvoltage protection up to ±7 V. - What are the two operating modes of the AD7863BR-3?
The two operating modes are high sampling mode and auto sleep mode.
