AD5678BRUZ-2

Overview

The AD5678BRUZ-2 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 2.5 V reference with 5 ppm/°C temperature coefficient, enabling a 5 V full-scale output. The device guarantees monotonicity by design and incorporates a power-on reset circuit that initializes outputs to zero scale. It supports a versatile 3-wire serial interface compatible with standard DSP protocols, allowing clock rates up to 50 MHz.

Feature Summary

• Octal architecture with four 12-bit and four 16-bit buffered voltage-output DACs
• Integrated 2.5 V precision reference with 5 ppm/°C drift for 5 V full-scale range
• Power-down mode reduces current consumption to 400 nA at 5 V
• Hardware LDAC and CLR functions for simultaneous updates and asynchronous 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 specific suffix 'BRUZ-2' against the manufacturer's ordering guide to confirm the B-grade accuracy level, 16-lead TSSOP package, and internal 2.5 V reference configuration. Ensure compatibility with the required 3-wire serial interface timing specifications during integration.

Selection Notes

Select this component when multiple analog outputs are required in a compact form factor. The B-grade offers tighter linearity specifications compared to the A-grade variant. Consider the 16-lead TSSOP package constraints for PCB layout and ensure the application can accommodate the 50 MHz maximum serial clock speed for optimal data throughput.

Part Context

This part belongs to the AD5678 family of low-power octal DACs. The 'B' designation indicates the B-grade performance tier, while the '-2' suffix specifies the inclusion of the internal 2.5 V reference. The 'RUZ' code denotes the 16-lead TSSOP surface-mount package, distinguishing it from the 14-lead variant or other packaging options within the same series.

Replacement Considerations

Direct substitutes include the AD5678ARUZ-2 for A-grade performance or the AD5668BRUZ-2 if only 16-bit resolution is required across all channels. Verify pinout compatibility and electrical specifications before swapping.