Overview
The AD7863AR-2 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 requiring precise and synchronized data acquisition. The AD7863AR-2 operates from a single 5 V supply and features an automatic power-down mode, which makes it suitable for battery-powered or portable devices. It includes two track/hold amplifiers, an internal 2.5 V reference, 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 |
| Supply Voltage | 5 V |
| Power Consumption | 70 mW typical |
| Analog Input Range | 0 V to 2.5 V (AD7863-2) |
| Overvoltage Protection | ±17 V, ±7 V, or +7 V |
| Operating Temperature | –40°C to +85°C |
| Package Type | 28-Lead SOIC_W, SSOP |
| Conversion Time | 5.2 μs |
| Interface Type | High-speed parallel interface |
Key Features
- Simultaneous sampling and conversion of two channels.
- Automatic power-down mode for reduced power consumption.
- Internal 2.5 V reference and high-speed parallel interface.
- Overvoltage protection on analog inputs.
- Low power consumption with a maximum of 105 μW in power-saving mode.
- Compatible with microprocessors, microcontrollers, and digital signal processors.
Applications
The AD7863AR-2 is suitable for a variety of applications, including:
- Battery-powered or portable devices due to its low power consumption and automatic power-down mode.
- Industrial control systems requiring simultaneous sampling of multiple analog inputs.
- Medical devices that need precise and synchronized data acquisition.
- Aerospace and defense applications where high-speed and low-power ADCs are critical.
- Automotive systems that require robust and reliable analog-to-digital conversion.
Q & A
- What is the resolution of the AD7863AR-2 ADC?
The AD7863AR-2 has a resolution of 14 bits. - What is the sampling rate of the AD7863AR-2?
The sampling rate is 175 kSPS. - What is the supply voltage for the AD7863AR-2?
The supply voltage is 5 V. - How much power does the AD7863AR-2 typically consume?
The typical power consumption is 70 mW. - What is the analog input range for the AD7863-2 model?
The analog input range is 0 V to 2.5 V. - Does the AD7863AR-2 have overvoltage protection?
Yes, it has overvoltage protection up to ±17 V, ±7 V, or +7 V. - What is the operating temperature range for the AD7863AR-2?
The operating temperature range is –40°C to +85°C. - What types of packages are available for the AD7863AR-2?
The AD7863AR-2 is available in 28-Lead SOIC_W and SSOP packages. - How long does the conversion process take for the AD7863AR-2?
The conversion time is 5.2 μs. - What type of interface does the AD7863AR-2 use?
The AD7863AR-2 uses a high-speed parallel interface.
