Overview
The AD7863BRZ-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 analog input channels, making it ideal for applications requiring precise and synchronized data acquisition.
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 analog input channels, preserving relative phase information.
- Internal 2.5 V reference and high-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors.
- Automatic power-down mode for reduced power consumption, ideal for battery-powered or portable applications.
- Overvoltage protection on analog inputs to prevent damage.
- High dynamic performance parameters including harmonic distortion and signal-to-noise ratio.
Applications
The AD7863BRZ-3 is suitable for a variety of applications, including:
- Medical devices requiring simultaneous sampling of multiple signals.
- Industrial control systems needing precise and synchronized data acquisition.
- Aerospace and defense systems where high-speed and low-power ADCs are critical.
- Portable and battery-powered devices that benefit from the automatic power-down mode.
Q & A
- What is the resolution of the AD7863BRZ-3?
The AD7863BRZ-3 has a resolution of 14 bits. - What is the sampling rate of the AD7863BRZ-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. - How much power does the AD7863BRZ-3 typically consume?
The AD7863BRZ-3 typically consumes 70 mW of power. - What is the operating temperature range of the AD7863BRZ-3?
The operating temperature range is –40°C to +85°C. - What types of packages are available for the AD7863BRZ-3?
The AD7863BRZ-3 is available in 28-Lead SOIC_W and SSOP packages. - How long does the conversion process take for the AD7863BRZ-3?
The conversion time is 5.2 μs. - Does the AD7863BRZ-3 have overvoltage protection?
Yes, the AD7863BRZ-3 has overvoltage protection up to ±7 V. - How is the conversion initiated on the AD7863BRZ-3?
Conversion is initiated by pulsing the CONVST input. - What signals indicate the end of conversion on the AD7863BRZ-3?
The BUSY signal indicates the end of conversion.
