Overview
The AD7863ARZ-3 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-and-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 | ±2.5 V (AD7863-3) |
| Supply Voltage | 5 V |
| Power Consumption | 70 mW typical |
| Operating Temperature | –40°C to +85°C |
| Package Type | 28-Lead SOIC_W, SSOP |
| Conversion Time | 5.2 μs |
| Overvoltage Protection | Up to ±7 V |
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 reduced power consumption in battery-powered or portable applications.
- Four analog inputs grouped into two channels (A and B) with two inputs per channel.
- High-speed successive approximation ADCs with track-and-hold amplifiers.
- Dynamic performance specifications include harmonic distortion and signal-to-noise ratio.
Applications
The AD7863ARZ-3 is suitable for a variety of applications requiring high-speed and precise analog-to-digital conversion, such as:
- Medical devices: For simultaneous sampling in medical imaging and diagnostic equipment.
- Aerospace and defense: For high-reliability data acquisition systems.
- Industrial automation: For precise measurement and control systems.
- Portable and battery-powered devices: Benefiting from the automatic power-down mode to conserve power.
Q & A
- What is the resolution of the AD7863ARZ-3?
The AD7863ARZ-3 has a resolution of 14 bits. - What is the sampling rate of the AD7863ARZ-3?
The sampling rate is 175 kSPS. - What is the analog input range for the AD7863-3 model?
The analog input range for the AD7863-3 model is ±2.5 V. - What is the supply voltage for the AD7863ARZ-3?
The supply voltage is 5 V. - How much power does the AD7863ARZ-3 typically consume?
The AD7863ARZ-3 typically consumes 70 mW. - What are the operating temperature ranges for the AD7863ARZ-3?
The operating temperature range is –40°C to +85°C. - What types of packages are available for the AD7863ARZ-3?
The AD7863ARZ-3 is available in 28-Lead SOIC_W and SSOP packages. - How long does the conversion process take for the AD7863ARZ-3?
The conversion time is 5.2 μs. - Does the AD7863ARZ-3 have overvoltage protection?
Yes, the AD7863ARZ-3 has overvoltage protection up to ±7 V. - How are the analog inputs configured on the AD7863ARZ-3?
The four analog inputs are grouped into two channels (A and B), each with two inputs that can be sampled and converted simultaneously.
