Overview
The AD7863AR-10REEL7, produced by Analog Devices Inc., is a high-performance, simultaneous sampling dual 14-bit analog-to-digital converter (ADC). 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 those in battery-powered or portable devices.
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) |
| Input Resistance | Typically 9 kΩ (AD7863-10), 3 kΩ (AD7863-3) |
| Supply Voltage | Single 5 V |
| Power Consumption | Typically 70 mW |
| Operating Temperature | –40°C to +85°C |
| Package Type | 28-Lead SOIC_W, SSOP |
Key Features
- Simultaneous sampling and conversion of two channels, preserving relative phase information.
- Automatic power-down mode for low power consumption, ideal for battery-powered applications.
- High speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Overvoltage protection on analog inputs up to ±17 V, ±7 V, or +7 V depending on the model.
- Internal clock oscillator circuit for conversion clock generation.
Applications
The AD7863AR-10REEL7 is suitable for a wide range of applications, including:
- Industrial control systems requiring simultaneous sampling of multiple channels.
- Medical devices that need precise and simultaneous conversion of analog signals.
- Aerospace and defense systems where high accuracy and reliability are critical.
- Portable and battery-powered devices due to its low power consumption.
- Data acquisition systems where simultaneous sampling is essential.
Q & A
- What is the resolution of the AD7863AR-10REEL7?
The AD7863AR-10REEL7 has a resolution of 14 bits. - What is the sampling rate of the AD7863AR-10REEL7?
The sampling rate is 175 kSPS. - What are the available analog input ranges for the AD7863?
The analog input ranges are ±10 V, ±2.5 V, and 0 V to 2.5 V depending on the model. - What is the typical power consumption of the AD7863AR-10REEL7?
The typical power consumption is 70 mW. - What are the operating temperature ranges for the AD7863AR-10REEL7?
The operating temperature range is –40°C to +85°C. - What types of packages are available for the AD7863?
The AD7863 is available in 28-Lead SOIC_W and SSOP packages. - Does the AD7863 have overvoltage protection?
Yes, the AD7863 has overvoltage protection on the analog inputs. - How is the conversion clock generated in the AD7863?
The conversion clock is generated internally using a laser-trimmed clock oscillator circuit. - What is the purpose of the automatic power-down mode in the AD7863?
The automatic power-down mode reduces power consumption by putting the device into sleep after each conversion cycle. - What types of interfaces does the AD7863 support?
The AD7863 supports a high speed parallel interface for connection to microprocessors, microcontrollers, and digital signal processors.
