Overview
The AD7863AR-2REEL is a high-performance, simultaneous sampling dual 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for applications requiring precise and simultaneous conversion of two analog input channels. The AD7863 features a mixed technology process that combines precision bipolar circuits with low power CMOS logic, making it suitable for a variety of applications including battery-powered and portable devices.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 175 kSPS |
| Analog Input Range | 0 V to 2.5 V (AD7863-2) |
| Input Resistance | Typically 3 kΩ (AD7863-3), 9 kΩ (AD7863-10) |
| Supply Voltage | Single 5 V supply |
| Power Consumption | Typical 70 mW |
| Operating Temperature | –40°C to +85°C |
| Package Type | 28-Lead SOIC_W, SSOP |
| Overvoltage Protection | Up to ±17 V, ±7 V, or +7 V depending on the model |
Key Features
- Simultaneous Sampling: The AD7863 allows for simultaneous sampling and conversion of two analog input channels, preserving the relative phase information of the signals.
- High-Speed Conversion: The conversion result for both channels is available 5.2 μs after initiating conversion.
- Low Power Consumption: The component operates in an automatic power-down mode, making it ideal for battery-powered or portable applications.
- High-Speed Parallel Interface: Easy connection to microprocessors, microcontrollers, and digital signal processors.
- Overvoltage Protection: The analog inputs are protected against overvoltage up to specified limits without causing damage.
Applications
- Portable and Battery-Powered Devices: The low power consumption and automatic power-down mode make the AD7863 suitable for portable and battery-powered applications.
- Data Acquisition Systems: Ideal for systems requiring simultaneous sampling of multiple analog channels.
- Industrial Control Systems: Used in applications where precise and simultaneous measurement of analog signals is necessary.
- Medical Devices: Suitable for medical devices that require high accuracy and low power consumption.
Q & A
- What is the resolution of the AD7863AR-2REEL ADC?
The AD7863AR-2REEL has a resolution of 14 bits.
- What is the sampling rate of the AD7863AR-2REEL?
The sampling rate is 175 kSPS.
- What is the analog input range for the AD7863-2 model?
The analog input range for the AD7863-2 model is 0 V to 2.5 V.
- How much power does the AD7863AR-2REEL typically consume?
The component typically consumes 70 mW of power.
- What types of packages are available for the AD7863AR-2REEL?
The AD7863AR-2REEL is available in 28-Lead SOIC_W and SSOP packages.
- Does the AD7863AR-2REEL have overvoltage protection?
- How is the conversion initiated on the AD7863AR-2REEL?
- What is the operating temperature range for the AD7863AR-2REEL?
- Is the AD7863AR-2REEL suitable for battery-powered devices?
- What kind of interface does the AD7863AR-2REEL have for connecting to microprocessors?
