AD669BRZ-REEL

Overview

The AD669BRZ-REEL is a monolithic 16-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. utilizing BiMOS II technology to integrate low-power CMOS logic with high-precision bipolar linear circuits on a single chip. It features current switches, decoding logic, output amplifiers, an embedded Zener reference, and dual-buffered latches. The device accepts parallel 16-bit data inputs and supports update rates up to 167 ksps. Key electrical parameters include a settling time of 6 µs, a signal-to-noise ratio (SNR) of 83 dB, and a power dissipation of 625 mW. It operates within a temperature range of -40°C to +85°C and is housed in a 28-pin SOIC package.

Feature Summary

• Dual-buffered latch structure eliminates data offset errors and enables synchronized updates in multi-DAC systems
• High-stability embedded Zener reference with typical output noise voltage of 120nV/√Hz
• Monolithic integration of current switches, decoding logic, and output amplifiers via BiMOS II process
• Low total harmonic distortion plus noise (THD+N) of 0.009% and linearity error of ±2 LSB

Applications

• Precision industrial process control systems requiring synchronized multi-channel DAC updates
• High-resolution waveform generation for test and measurement equipment
• Acoustic and vibration control systems demanding low noise and high linearity
• Medical imaging equipment requiring stable analog signal generation

Procurement Notes

Verify the specific suffix 'REEL' indicates tape-and-reel packaging when sourcing components. Confirm that the part number corresponds to the standard AD669 specifications, as suffixes may denote packaging variations rather than functional changes. Ensure compatibility with the required 28-pin SOIC footprint during procurement planning.

Selection Notes

Select this component for applications requiring 16-bit resolution with parallel interface capabilities and integrated reference circuitry. Consider the 6 µs settling time and 167 ksps maximum sampling rate for bandwidth requirements. Verify that the system design accommodates the 625 mW power dissipation and the specified operating temperature range of -40°C to +85°C.

Part Context

The AD669 series represents Analog Devices' high-performance 16-bit DAC portfolio, leveraging BiMOS II technology for precision and speed. The BRZ variant specifically denotes the commercial temperature grade (-40°C to +85°C) and lead-free RoHS-compliant construction. The REEL suffix identifies the bulk tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative 16-bit parallel DACs from Analog Devices or other manufacturers based on pinout compatibility, resolution, and interface requirements.