AD7811YRUZ-REEL7

Overview

The AD7811YRUZ-REEL7 is a 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features four single-ended analog input channels and operates from a single 2.7 V to 5.5 V supply. The device integrates an onboard track-and-hold amplifier, a 2.5 V reference circuit, and a high-speed serial interface compatible with DSPs and microcontrollers. It supports a maximum sampling rate of 350 kSPS with a conversion time of 2.3 µs. The component is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP).

Feature Summary

• Configurable input channels support both single-ended and pseudo-differential modes via control registers.
• Integrated onboard 2.5 V reference circuitry reduces external component requirements.
• Hardware and software control options enable automatic power-down modes for optimized energy efficiency.

Applications

• Portable instrumentation systems requiring low power consumption.
• Industrial process control data acquisition.
• Battery-powered measurement devices.

Procurement Notes

Verify the specific package variant against the datasheet ordering guide to ensure compatibility with the intended PCB footprint. Confirm that the REEL7 suffix aligns with automated surface-mount assembly requirements. Cross-reference the automotive qualification status if the application demands extended reliability standards beyond standard industrial specifications.

Selection Notes

Select this component when a moderate resolution ADC with integrated reference and multiplexing capabilities is required. Evaluate the trade-off between the 350 kSPS throughput and the 10-bit accuracy for the target signal bandwidth. Ensure the system voltage range falls within the specified 2.7 V to 5.5 V limits to maintain performance specifications.

Part Context

This part belongs to the AD7811/AD7812 family of 10-bit sampling ADCs. The AD7811 variant provides four input channels, whereas the AD7812 offers eight channels. Both share identical core architecture, serial interface protocols, and power management features, differing primarily in channel count and pin configuration.

Replacement Considerations

Direct functional substitutes include the AD7812YRUZ for expanded channel capacity or other ADI 10-bit SAR ADCs with similar serial interfaces. Verify pinout compatibility and register mapping before implementation.