AD7853LARSZ-REEL

Overview

The AD7853LARSZ-REEL is a low-power, 12-bit successive approximation analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single 3 V to 5.5 V supply and delivers a throughput rate of 100 kSPS. The device features a pseudo-differential input sampling scheme with an acquisition time of 1000 ns. Power consumption is optimized at 4.5 mW in normal mode (VDD = 3 V) and includes automatic power-down after conversion. It supports flexible serial interfaces compatible with SPI, QSPI, and µP protocols, and incorporates system and self-calibration capabilities.

Feature Summary

• Low power optimization for battery-operated applications
• Integrated self-calibration and system calibration functions
• Flexible serial interface supporting multiple communication protocols
• Automatic power-down functionality following signal conversion

Applications

• Battery-powered personal digital assistants
• Medical instrumentation systems
• Mobile communications devices
• Pen computers
• High-speed modems

Procurement Notes

Verify the specific suffix ARSZ against official documentation to confirm package type and reel configuration. Ensure the component matches the L version specifications for 100 kSPS throughput. Confirm temperature range compliance for the intended operating environment before finalizing procurement orders.

Selection Notes

Select this model when lower power consumption is prioritized over maximum speed compared to the standard AD7853. Verify that the 100 kSPS throughput meets system requirements. Ensure the application utilizes a single 3 V or 5 V supply. Check compatibility with existing serial interface protocols such as SPI or QSPI.

Part Context

This component belongs to the AD7853/AD7853L family of high-speed, low-power 12-bit ADCs. The AD7853L variant is specifically engineered for reduced power dissipation while maintaining accurate data conversion. It shares architectural similarities with other members of the series but offers distinct performance characteristics tailored for energy-efficient designs.

Replacement Considerations

The AD7853ARZ serves as a higher-speed alternative within the same family. Verify pinout compatibility and interface protocol support when substituting components. Ensure the replacement part meets the required throughput and power constraints of the design.