AD7872BRZ-REEL

Overview

The AD7872BRZ-REEL is a complete monolithic 14-bit analog-to-digital converter (ADC) fabricated in LC2MOS technology. It features an internal track-and-hold amplifier, successive approximation register, and a 3 V buried Zener reference. The device operates from ±5 V power supplies with a typical power dissipation of 50 mW. It provides a serial digital interface with an 83 kSPS throughput rate and 57 ns data access time. The SNR is 80 dB at a 10 kHz input frequency. The industrial temperature range version supports operation from -40°C to +85°C.

Feature Summary

• Serial-only output architecture for simplified microprocessor interfacing
• Integrated laser-trimmed internal clock eliminating external timing components
• Self-contained design requiring no external conversion components

Applications

• Digital signal processing systems
• High-speed modem applications
• Speech recognition and synthesis circuits
• DSP servo control loops

Procurement Notes

Verify the specific suffix BRZ-REEL against official documentation to confirm the industrial temperature grade (-40°C to +85°C) and reel packaging format. Ensure the ordering code matches the exact revision required for your design specifications before finalizing procurement.

Selection Notes

Select this component when a single-channel, high-resolution serial ADC is required. The AD7872 differs from the AD7871 by offering only serial data output rather than parallel or byte options. Verify that the system can accommodate the required pull-up resistors for the serial data lines.

Part Context

This part belongs to the AD7871/AD7872 family of fast, complete 14-bit sampling ADCs. Both devices share identical core performance characteristics but differ in their digital interface configurations. The AD7872 specifically targets applications where serial communication protocols are preferred over parallel buses.

Replacement Considerations

Public confirmed substitute: AD7872KRZ.