AD5678BRUZ-1REEL7

Overview

The AD5678BRUZ-1REEL7 is an octal digital-to-analog converter featuring four 12-bit and four 16-bit channels in a single package. It operates on a single 2.7 V to 5.5 V supply and includes an on-chip 1.25 V reference with 5 ppm/°C drift, enabling a 2.5 V full-scale output. The device guarantees monotonicity by design and incorporates a power-on reset circuit that initializes outputs to 0 V. It supports a versatile 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, with clock rates up to 50 MHz.

Feature Summary

• Octal architecture with four 12-bit and four 16-bit buffered voltage-output DACs
• Integrated 1.25 V precision reference (5 ppm/°C) with internal gain of 2
• Power-down mode reduces current consumption to 400 nA at 5 V
• Hardware LDAC and asynchronous CLR functions for simultaneous updates or clearing

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Programmable voltage and current sources
• Digital gain and offset adjustment circuits

Procurement Notes

Verify the suffix '1' confirms the inclusion of the 1.25 V internal reference, which sets the full-scale output to 2.5 V. Confirm the 'B' grade designation corresponds to the specified industrial temperature range of -40°C to +105°C. Ensure the 'RUZ' package identifier matches the required 14-lead TSSOP footprint for the target PCB layout.

Selection Notes

Select this component when an octal DAC configuration is required within a single package. The AD5678-1 variant is appropriate for applications needing a 2.5 V full-scale range without external references. Consider the 16-bit accuracy for high-precision channels and 12-bit for standard channels. Verify that the 50 MHz serial interface speed meets the system's data throughput requirements.

Part Context

This part belongs to the AD5678 family of nanoDACs from Analog Devices. The specific ordering code AD5678BRUZ-1REEL7 denotes the B-grade industrial version with the 1.25 V reference option, packaged in a 14-lead TSSOP. The REEL7 suffix indicates it is supplied in a tape-and-reel format for automated assembly processes.

Replacement Considerations

The AD5678ARUZ-1REEL7 is the A-grade alternative with potentially tighter performance specifications. For higher resolution needs, consider the AD5676 series. For lower channel counts, the AD5677 (quad) or AD5679 (dual) may be suitable replacements.