AD7863ARS-2REEL

Overview

The AD7863ARS-2REEL is a dual-channel, 14-bit successive approximation analog-to-digital converter manufactured by Analog Devices. It operates from a single 5 V supply and supports a sampling rate of 175 kSPS with a conversion time of 5.2 μs. The device features four single-ended analog inputs grouped into two channels (A and B), selectable via the A0 pin. This specific variant provides a unipolar input range of 0 V to 2.5 V. It includes an internal 2.5 V reference, simultaneous sampling capabilities, and a high-speed parallel interface.

Feature Summary

• Simultaneous sampling and conversion for two independent channels
• Integrated 2.5 V internal voltage reference
• High-speed parallel data interface compatible with standard logic
• Automatic power-down mode for reduced energy consumption

Applications

• Battery-powered or portable instrumentation systems
• Vector motor control applications requiring phase information
• Industrial signal processing with unipolar input requirements

Procurement Notes

Verify that the ordering suffix matches the required package type and reel configuration. Confirm the specific version (A or B) against the datasheet specifications for gain error and linearity tolerances. Ensure the component meets the necessary RoHS compliance standards for the intended manufacturing process.

Selection Notes

Select this part when a unipolar 0 V to 2.5 V input range is required. Compare performance metrics such as SNR and THD against alternative models like the AD7863-3 if bipolar signals are present. Evaluate the parallel interface requirements against the host microprocessor or DSP capabilities.

Part Context

This component belongs to the AD7863 series, which serves as a lead-compatible upgrade to the AD7862. The series offers dual 14-bit ADCs with simultaneous sampling. Variants differ primarily in analog input ranges, with the -2 suffix designating the unipolar configuration.

Replacement Considerations

The AD7863ARZ-2 is a direct equivalent offering identical electrical characteristics. Verify package compatibility between SOIC-28 and SSOP options if physical footprint constraints exist.