AD7811YRUZ-REEL

Overview

The AD7811YRUZ-REEL is a 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features four single-ended input channels that can be configured as pseudo-differential pairs. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and includes an onboard 2.5 V reference with ±2.5% accuracy. It supports a maximum sampling rate of 350 kSPS with a conversion time of 2.3 µs. The component utilizes a DSP-compatible serial interface for data transfer and control. Power consumption is typically 10.5 mW, with automatic power-down modes available to reduce energy usage at lower throughput rates.

Feature Summary

• Integrated track-and-hold amplifier and onboard 2.5 V reference circuitry
• Configurable input channels supporting single-ended or pseudo-differential modes
• DSP- and microcontroller-compatible serial interface with hardware and software control options
• Package address pin enabling multiple devices to share the same serial bus

Applications

• Battery-powered instrumentation systems requiring low power consumption
• Industrial process control applications involving multi-channel signal acquisition
• Automotive electronic systems qualified for automotive environments
• Data acquisition systems interfacing with digital signal processors

Procurement Notes

Verify the specific ordering suffix REEL indicates tape-and-reel packaging when sourcing components. Confirm the Y version designation corresponds to the specified linearity and performance parameters in official documentation. Ensure compatibility with the required operating temperature range and supply voltage specifications for the target application environment.

Selection Notes

Select this component for applications requiring a balance of speed and power efficiency in a compact package. Consider the onboard reference if external precision references are not feasible. Evaluate the serial interface timing requirements against the host processor capabilities. Verify channel count needs, as the AD7812 variant offers eight channels for higher density applications.

Part Context

The AD7811 belongs to a family of high-speed, low-power 10-bit ADCs designed for versatile signal conditioning tasks. It is often paired with the AD7812, which provides eight channels, allowing system designers to scale channel counts while maintaining interface compatibility. Both devices share similar architectural features and control logic, facilitating mixed configurations in complex data acquisition architectures.

Replacement Considerations

The AD7812 serves as a functional alternative within the same series, offering eight channels instead of four while maintaining identical electrical characteristics and interface protocols. Designers should verify pinout compatibility and channel configuration requirements when substituting between these models.