Overview
The AD7863ARS-2, produced by Analog Devices Inc., is a high-speed, low-power, dual 14-bit analog-to-digital converter (ADC). This component operates from a single 5 V supply and is designed for simultaneous sampling and conversion of two channels. It features two complete ADC functions, each with a two-channel input multiplexer, and provides a high-speed parallel interface for easy connection to microprocessors, microcontrollers, and digital signal processors. The AD7863ARS-2 is ideal for battery-powered or portable applications due to its automatic power-down mode, which reduces power consumption significantly once the conversion is complete.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 175 kSPS |
| Conversion Time | 5.2 μs |
| Supply Voltage | 5.0 V ± 5% |
| Power Consumption | Typical 70 mW, Maximum 105 μW in power-down mode |
| Analog Input Range | 0 V to 2.5 V (AD7863-2) |
| Package Type | 28-Lead SSOP |
| Operating Temperature | –40°C to +85°C |
| Overvoltage Protection | Up to +7 V on analog inputs |
Key Features
- Simultaneous sampling and conversion of two channels
- Four input channels grouped into two channels (A and B)
- Internal 2.5 V reference
- High-speed parallel interface
- Low power consumption with automatic power-down mode
- Overvoltage protection on analog inputs
- Available in 28-lead SOIC_W and SSOP packages
Applications
The AD7863ARS-2 is suitable for a variety of applications, including:
- Battery-powered or portable devices due to its low power consumption
- High-speed data acquisition systems
- Industrial control and automation
- Medical devices requiring simultaneous sampling of multiple channels
- Aerospace and defense applications where high reliability and precision are critical
Q & A
- What is the resolution of the AD7863ARS-2 ADC?
The AD7863ARS-2 has a resolution of 14 bits. - What is the sampling rate of the AD7863ARS-2?
The sampling rate is 175 kSPS. - How long does the conversion process take?
The conversion time is 5.2 μs. - What is the supply voltage for the AD7863ARS-2?
The supply voltage is 5.0 V ± 5%. - What is the typical power consumption of the AD7863ARS-2?
The typical power consumption is 70 mW. - 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. - What type of package is the AD7863ARS-2 available in?
The AD7863ARS-2 is available in a 28-Lead SSOP package. - What is the operating temperature range for the AD7863ARS-2?
The operating temperature range is –40°C to +85°C. - Does the AD7863ARS-2 have overvoltage protection?
Yes, the AD7863ARS-2 has overvoltage protection up to +7 V on analog inputs. - What are some common applications for the AD7863ARS-2?
Common applications include battery-powered devices, high-speed data acquisition systems, industrial control, medical devices, and aerospace and defense applications.
