AD7866ARUZ-REEL7

Overview

The AD7866ARUZ-REEL7 is a dual 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.7 V to 5.25 V supply and supports throughput rates up to 1 MSPS. The device features two independent ADCs, each with a low-noise track-and-hold amplifier capable of handling input frequencies exceeding 10 MHz. It includes an on-board 2.5 V reference and flexible power management options, consuming a maximum of 24 mW at 5 V supplies. The component utilizes a high-speed serial interface compatible with SPI/QSPI/MICROWIRE standards and is housed in a 20-lead TSSOP package.

Feature Summary

• Dual-channel architecture enabling simultaneous sampling and conversion of two independent channels.
• Integrated on-chip 2.5 V voltage reference with selectable external or internal configuration.
• Flexible power/throughput rate management allowing operation in sleep mode for reduced consumption.
• No pipeline delays associated with the successive approximation conversion process.

Applications

• Industrial process control systems requiring multi-channel data acquisition.
• Portable instrumentation utilizing single-supply operation.
• Vibration monitoring and acoustic sensing applications.
• Medical equipment involving physiological signal digitization.

Procurement Notes

Verify the specific revision level and temperature grade against the official datasheet specifications before integration. Confirm that the ordering suffix corresponds to the required tape and reel packaging format. Ensure compatibility with the target system's logic voltage levels and ground reference requirements.

Selection Notes

Select this component when simultaneous dual-channel conversion is required within a low-power constraint. Evaluate the input signal bandwidth against the specified full power bandwidth to ensure adequate dynamic performance. Consider the available serial clock frequency to determine if the conversion time meets the system timing requirements.

Part Context

This part belongs to the AD7866 series of dual SAR ADCs. It shares functional similarities with other Analog Devices precision converters but is distinct in its dual-channel simultaneous sampling capability and specific power dissipation characteristics at 1 MSPS throughput rates.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material. Consult the manufacturer's documentation for potential cross-reference recommendations.