AD5676RARUZ-REEL7

Overview

The AD5676RARUZ-REEL7 is an octal, 16-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It features a low-drift 2.5 V internal reference with a typical temperature coefficient of 2 ppm/°C and user-selectable gain of 1 or 2, providing full-scale outputs of 2.5 V or 5 V. The device operates on a single 2.7 V to 5.5 V supply and supports a 50 MHz SPI interface with readback or daisy-chain capabilities. Packaged in a 20-lead TSSOP, it includes power-on reset circuitry and individual channel power-down modes reducing current consumption to 1 µA typical.

Feature Summary

• Octal architecture with 16-bit resolution and ±3 LSB maximum INL
• Integrated 2.5 V reference with 2 ppm/°C drift
• User-selectable gain (1x or 2x) for 2.5 V or 5 V output spans
• 50 MHz SPI interface with daisy-chain and readback support

Applications

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

Procurement Notes

Verify the specific grade (A or B) required for your application, as performance specifications such as INL and offset error vary between grades. Confirm that the TSSOP package aligns with your PCB footprint requirements. Ensure the internal reference meets your system's noise and drift constraints before finalizing procurement.

Selection Notes

Select this component when high channel density and precision are required in a compact form factor. The AD5676R is suitable for applications needing simultaneous multi-channel updates via the LDAC pin. Consider the A Grade for tighter linearity specifications or the B Grade for cost-sensitive designs where slightly relaxed accuracy is acceptable.

Part Context

This part belongs to the nanoDAC+ family, which integrates precision DACs with on-chip references. The AD5676R specifically offers 16-bit resolution across eight channels. It shares functional similarities with the AD5672R but provides higher resolution. The REEL7 suffix indicates tape and reel packaging for automated assembly.

Replacement Considerations

No direct pin-compatible replacements are documented in the provided source material. Designers requiring alternative sources should evaluate other octal DACs with similar SPI interfaces and reference integration, ensuring compatibility with the 20-lead TSSOP package.