AD7863ARSZ-10REEL

Overview

The AD7863ARSZ-10REEL is a dual 14-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 5 V supply and features two simultaneous sampling channels with four total input pins. The device supports an analog input range of ±10 V, utilizing a high-speed parallel interface for data transfer. Key electrical specifications include a conversion time of 5.2 μs, a maximum throughput rate of 175 kSPS, and a typical power consumption of 70 mW in normal mode. The component includes an internal 2.5 V reference and offers overvoltage protection up to ±17 V on the analog inputs.

Feature Summary

• Simultaneous sampling and conversion of two independent channels to preserve relative phase information between signals.
• Integrated signal scaling and multiplexing allowing selection between specific input pairs via the A0 pin.
• High-speed parallel data interface compatible with standard microprocessor control logic using CS and RD signals.
• Automatic power-down mode that minimizes energy consumption during idle periods between conversion cycles.

Applications

• Vector motor control systems requiring precise phase relationship monitoring.
• Industrial process control applications involving standard ±10 V sensor signals.
• Data acquisition systems needing simultaneous multi-channel digitization.

Procurement Notes

Verify the ordering suffix REEL indicates tape-and-reel packaging rather than tube packaging when sourcing this specific variant. Confirm the -10 designation matches the required ±10 V input range for your application circuit. Ensure the ARSZ package type aligns with your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select the AD7863ARSZ-10REEL specifically for applications requiring ±10 V input ranges; other variants like the AD7863-3 handle ±2.5 V. Consider the 175 kSPS throughput limit when designing system timing. Evaluate the parallel interface complexity against available microcontroller resources compared to serial alternatives.

Part Context

This component belongs to the AD7863 family of dual ADCs, serving as a 14-bit upgrade to the earlier AD7862 series. It utilizes Linear Compatible CMOS (LC2MOS) technology to combine precision bipolar circuits with low-power CMOS logic. The device is designed to replace older generation converters while maintaining pin compatibility for legacy designs.

Replacement Considerations

The AD7862 serves as a direct predecessor with similar functionality but lower performance metrics. Verify pinout compatibility if substituting into existing layouts. No other official cross-reference part numbers are documented in the provided datasheet.