AD7876BR-REEL

Overview

The AD7876BR-REEL is a monolithic 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from ±5 V power supplies and features an internal 3 V buried Zener reference, a laser-trimmed clock oscillator, and a track-and-hold amplifier with a 2 μs acquisition time. The device supports a sampling rate of 100 kS/s and provides a signal-to-noise ratio of 72 dB at a 10 kHz input frequency. Data output formats include parallel, byte, and serial interfaces, with a typical data access time of 57 ns. The component is housed in a 24-pin SOIC package and is designed for industrial temperature ranges.

Feature Summary

• Integrated complete ADC solution combining a 12-bit SAR converter, track-and-hold amplifier, and internal voltage reference on a single chip.
• Versatile digital interface supporting parallel, byte, and serial data output formats to accommodate various microprocessor architectures.
• Self-contained internal clock system that eliminates the need for external timing components while ensuring accurate conversion control.

Applications

• Data acquisition systems requiring high-speed 12-bit resolution
• Digital signal processing (DSP) front-end interfaces
• Industrial process control monitoring

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature range. Confirm RoHS compliance status as it varies by revision. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this model for applications requiring a ±10 V analog input range. Ensure the design accommodates ±5 V dual power supplies. Verify that the required interface mode matches the available pin configuration options provided in the datasheet.

Part Context

This component belongs to the AD7870/AD7875/AD7876 family of fast, complete 12-bit sampling ADCs. While sharing core architecture, the AD7876 is distinguished by its ±10 V input range capability compared to the ±3 V range of the AD7870 and the unipolar range of the AD7875.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.