AD7863ARSZ-2REEL7

Overview

The AD7863ARSZ-2REEL7 is a dual-channel, 14-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices. It operates from a single 5 V supply and features simultaneous sampling and conversion at a throughput rate of 175 kSPS. The device includes two track-and-hold amplifiers, an internal 2.5 V reference, and a high-speed parallel interface. This specific variant supports a unipolar input voltage range of 0 V to 2.5 V with straight binary output coding. It is housed in a 28-lead SSOP package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Simultaneous sampling and conversion on two channels preserves relative phase information between inputs.
• Integrated power-saving mode automatically reduces power consumption after each conversion cycle completes.
• Analog inputs feature overvoltage protection allowing voltages up to +7 V without damage.
• High-speed parallel interface enables direct connection to microprocessors and digital signal processors.

Applications

• Battery-powered or portable applications requiring low power consumption
• Vector motor control systems
• Industrial data acquisition systems

Procurement Notes

Verify the ordering suffix against official documentation to confirm the specific package type and reel configuration. Ensure the selected part number matches the required input voltage range specifications for your application design.

Selection Notes

Select this component when simultaneous channel sampling is required for phase-sensitive measurements. Consider the unipolar 0 V to 2.5 V input range constraint and the necessity for a parallel interface bus when integrating with host controllers.

Part Context

This device belongs to the AD7863 family, which serves as a 14-bit lead-compatible upgrade to the AD7862. The family offers different input range variants, including bipolar ±10 V and ±2.5 V options alongside the unipolar version.

Replacement Considerations

The AD7862 is a compatible predecessor offering similar functionality with lower resolution. Verify pin compatibility and interface requirements when substituting older components.