AD5689RARUZ-RL7

Overview

The AD5689RARUZ-RL7 is a dual, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It features an internal 2.5 V reference with a typical drift of 2 ppm/°C and operates on a single 2.7 V to 5.5 V supply. The device utilizes a versatile SPI interface supporting clock rates up to 50 MHz. Key performance metrics include a maximum settling time of 5 µs, low glitch impulse of 0.5 nV-sec, and power consumption of 3.3 mW at 3 V. It offers user-selectable gain of 1 or 2, per-channel power-down modes reducing current to 4 µA, and is available in a 16-lead TSSOP package.

Feature Summary

• Dual 16-bit resolution with high relative accuracy (INL ±2 LSB max) and guaranteed monotonicity by design.
• Integrated 2.5 V reference with low temperature coefficient (2 ppm/°C typical) and selectable gain of 1 or 2.
• High drive capability of 20 mA with rail-to-rail output operation and low glitch impulse (0.5 nV-sec).
• Versatile 50 MHz SPI interface with readback/daisy-chain support and 1.8 V logic compatibility.

Applications

• Optical transceivers
• Base station power amplifiers
• Process control (PLC I/O cards)
• Industrial automation
• Data acquisition systems

Procurement Notes

Verify the specific suffix -RL7 indicates reel packaging when sourcing. Confirm the A-grade or B-grade designation matches application accuracy requirements. Ensure the TSSOP-16 package variant aligns with PCB footprint constraints. Check for automotive qualification if operating in AEC-Q100 environments. Validate that the internal reference configuration meets system drift specifications without external components.

Selection Notes

Select this component for applications requiring dual-channel precision with minimal external reference circuitry. The 16-bit resolution suits high-accuracy data acquisition and process control. Consider the 50 MHz SPI speed for high-throughput systems. Evaluate the 20 mA drive capability against load requirements. Verify power-down current consumption fits low-power operational budgets.

Part Context

This part belongs to the AD5689R/AD5687R nanoDAC+ family, which includes 16-bit and 12-bit variants. The AD5689R specifically denotes the 16-bit resolution model. It shares architectural similarities with other members like the AD5697R but differs in interface type and bit depth. The family emphasizes low power, small package options, and integrated references for compact designs.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Cross-model selection within the nanoDAC+ family requires verification of resolution, interface, and package compatibility.