AD7863ARS-2REEL7

Overview

The AD7863ARS-2REEL7 is a dual 14-bit successive approximation analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single 5 V supply and features simultaneous sampling of two channels with four total input lines. The device provides a high-speed parallel interface and includes an internal 2.5 V reference. Key electrical parameters include a conversion time of 5.2 μs, a typical power dissipation of 45 mW in normal mode, and a maximum power consumption of 105 μW in power-down mode. It supports an input voltage range of 0 V to 2.5 V and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Simultaneous sampling and conversion of two independent channels
• Internal 2.5 V precision reference with external reference capability
• High-speed parallel data interface for microprocessor integration
• Automatic power-down mode for low-power applications

Applications

• Vector motor control systems
• Industrial process control monitoring
• Data acquisition systems requiring phase preservation

Procurement Notes

Verify the specific suffix 'ARS-2REEL7' against official documentation to confirm package type and reel packaging configuration. Ensure the input range specification matches the '-2' designation for unipolar operation. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status before procurement.

Selection Notes

Select this component when simultaneous sampling of two channels is required to maintain relative phase information. The AD7863-2 variant is appropriate for unipolar signal ranges between 0 V and 2.5 V. Consider the 14-bit resolution and 175 kSPS throughput rate for applications demanding high accuracy at moderate speeds. Evaluate the parallel interface requirements against available microcontroller or DSP resources.

Part Context

The AD7863 series serves as a lead-compatible upgrade to the AD7862, offering enhanced performance while maintaining pin compatibility. This family of devices is designed for applications requiring precise simultaneous sampling. The AD7863ARS-2REEL7 represents a specific configuration within this series, tailored for unipolar input ranges and tape-and-reel packaging for automated assembly.

Replacement Considerations

The AD7862 is a compatible predecessor with similar functionality but lower specifications. Verify pinout compatibility if substituting directly. No other direct replacements are confirmed in the provided documentation.