AD7863ARZ-10REEL7

Overview

The AD7863ARZ-10REEL7 is a dual-channel, 14-bit simultaneous sampling analog-to-digital converter (ADC) from Analog Devices. It operates on a single 5 V supply and features two successive approximation ADC cores with a conversion time of 5.2 μs. The device supports four analog inputs grouped into two channels (A and B), selectable via the A0 pin. It provides an input voltage range of ±10 V for the -10 variant. Key specifications include a typical power consumption of 70 mW in normal mode and a maximum of 105 μW in power-down mode. The part utilizes a high-speed parallel interface and includes an internal 2.5 V reference.

Feature Summary

• Simultaneous sampling and conversion of two independent channels to preserve relative phase information.
• Integrated track-and-hold amplifiers with tight aperture delay matching between channels.
• Internal 2.5 V reference source with option for external reference connection.
• Automatic power-down mode that activates after conversion completion to minimize energy usage.

Applications

• Vector motor control systems requiring precise phase data.
• Battery-powered or portable instrumentation due to low power operation.
• Industrial signal processing applications utilizing standard ±10 V input ranges.

Procurement Notes

Verify the specific suffix 'REEL7' indicates tape and reel packaging when sourcing components. Confirm the '-10' designation matches the required ±10 V input range for your application. Ensure compatibility with the 28-lead SOIC_W package dimensions during PCB layout planning.

Selection Notes

Select this component if simultaneous sampling of two channels is required rather than multiplexed acquisition. Consider the ±10 V input range specifically for industrial sensor interfaces. Evaluate the 175 kSPS throughput rate against system bandwidth requirements before finalizing the design.

Part Context

This device belongs to the AD7863 family, which serves as a 14-bit lead-compatible upgrade to the AD7862. The family includes variants with different input ranges, such as ±2.5 V and 0 V to 2.5 V options. The AD7863ARZ-10REEL7 specifically denotes the industrial temperature grade version with the ±10 V input capability.

Replacement Considerations

The AD7862 is a compatible predecessor offering similar functionality but with lower resolution. Verify pinout compatibility when substituting, as the AD7863 is designed as a direct upgrade. No other direct cross-model replacements are documented in the provided datasheet.