AD7823YRZ-REEL

Overview

The AD7823YRZ-REEL is an 8-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and features a pseudo-differential input structure with inherent track-and-hold functionality. The device utilizes a high-speed serial interface compatible with standard microcontrollers, requiring only three wires for operation. Key electrical specifications include a maximum throughput rate of 133 kSPS, a typical conversion time of 4 µs, and a signal-to-noise ratio of 48 dB. It supports automatic power-down modes to minimize energy consumption in battery-powered applications.

Feature Summary

• Inherent track-and-hold functionality eliminates the need for external sampling capacitors.
• Microcontroller-compatible serial interface simplifies system integration without additional logic.
• Automatic power-down mode significantly reduces average power consumption at lower throughput rates.

Applications

• Battery-powered test equipment
• Portable communications systems
• Low-power hand-held devices

Procurement Notes

Verify that the REEL suffix indicates tape-and-reel packaging suitable for automated assembly processes. Confirm the specific lot date code and RoHS compliance status directly with the supplier or manufacturer documentation prior to procurement. Ensure storage conditions align with the specified temperature ranges to maintain component integrity.

Selection Notes

Select this component when an 8-bit resolution and moderate speed are sufficient for the application requirements. Consider the pseudo-differential input architecture if offset cancellation is desired within the signal chain. Evaluate the power consumption profiles against the required throughput rates to determine if the automatic power-down feature meets the system's energy efficiency goals.

Part Context

This part belongs to the AD7823 series of low-power ADCs. It serves as a compact solution for space-constrained designs, available in various package options including SOIC and microSOIC. The Y version denotes the extended industrial temperature range specification, ensuring reliable operation across a wide variety of environmental conditions.

Replacement Considerations

The AD7810 is documented as a drop-in upgrade offering 10-bit resolution within the same package footprint. Verify pin compatibility and software register adjustments when migrating to higher-resolution alternatives within the Analog Devices portfolio.