AD7876BR-REEL7

Overview

The AD7876BR-REEL7 is a complete monolithic 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from ±5 V power supplies and features an internal laser-trimmed clock, track-and-hold amplifier, and 3 V reference. The device accepts a single-ended analog input range of ±10 V with a sampling rate of 100 kS/s. It provides parallel, byte, or serial digital interfaces with a data access time of 57 ns. The component is housed in a 24-pin SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates a 12-bit successive approximation ADC with a 2 μs track-and-hold amplifier on a single chip.
• Features versatile interface logic supporting parallel, byte, and serial data output formats for microprocessor compatibility.
• Includes an on-chip buried Zener reference and a self-contained laser-trimmed clock oscillator requiring no external timing components.

Applications

• Data acquisition systems requiring high-speed conversion
• Industrial process control applications
• Digital signal processing front ends

Procurement Notes

Verify the specific suffix BR-REEL7 against official documentation to confirm packaging type and temperature grade. Ensure supply chain sources provide valid manufacturer traceability. Confirm RoHS compliance status as indicated in current distributor listings before finalizing procurement orders.

Selection Notes

Select this component when a single-channel 12-bit resolution is required with a ±10 V input range. Verify that the ±5 V dual supply requirement aligns with system power constraints. Consider the available interface modes if interfacing with standard 8-bit or 16-bit microprocessors.

Part Context

This part belongs to the AD7870/AD7875/AD7876 family of fast, complete 12-bit ADCs. While sharing core architecture, the AD7876 is distinguished by its ±10 V bipolar input range, whereas the AD7870 uses ±3 V and the AD7875 uses 0 V to +5 V unipolar ranges. All variants share similar performance characteristics regarding speed and accuracy.

Replacement Considerations

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