AD5676BRUZ-REEL7

Overview

The AD5676BRUZ-REEL7 is an octal, 16-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It features a serial peripheral interface (SPI) operating at clock rates up to 50 MHz and requires an external reference voltage. The device operates from a single 2.7 V to 5.5 V supply with 1.8 V logic compatibility. Key performance metrics include a maximum integral nonlinearity (INL) of ±3 LSB and a total unadjusted error (TUE) of ±0.14% of full-scale range. It supports user-selectable gain settings of 1 or 2 via the GAIN pin.

Feature Summary

• Octal architecture providing eight independent 16-bit DAC channels in a single package.
• High relative accuracy with maximum INL of ±3 LSB and DNL of ±1 LSB.
• Versatile SPI interface supporting readback and daisy-chain operations at up to 50 MHz.
• Power-on reset circuit ensures outputs initialize to zero scale or midscale.

Applications

• Optical transceivers
• Base station power amplifiers
• Process control input/output cards
• Industrial automation systems
• Data acquisition systems

Procurement Notes

Verify that the specific B-grade variant matches the required INL specifications of ±3 LSB maximum. Confirm the presence of the REEL7 suffix indicates tape-and-reel packaging for automated assembly. Ensure the design accommodates the requirement for an external voltage reference, as this model does not integrate an internal reference source.

Selection Notes

Select this component when multiple high-resolution analog outputs are required within a compact footprint. The B-grade specification offers a balance of accuracy and cost compared to the A-grade variant. Consider the TSSOP-20 package dimensions for PCB layout constraints. Verify that the system logic levels align with the 1.62 V to 5.5 V VLOGIC input range.

Part Context

This part belongs to the nanoDAC+ family, designed for precision applications requiring low power consumption and high accuracy. The AD5676 series includes variants with internal references (AD5676R) and different interfaces. The BRUZ suffix denotes the B-grade accuracy level and the 20-lead TSSOP package format.

Replacement Considerations

The AD5676ARUZ is a higher-accuracy alternative with ±1.8 LSB INL. For designs requiring an integrated reference, the AD5676RBRUZ provides internal reference capabilities while maintaining similar performance characteristics.