AD5689BRUZ-RL7

Overview

The AD5689BRUZ-RL7 is a dual, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It operates on a single 2.7 V to 5.5 V analog supply and supports logic voltages from 1.62 V to 5.5 V. The device features an SPI interface with clock rates up to 50 MHz. Key electrical specifications include a maximum integral nonlinearity (INL) of ±3 LSB, a settling time of 5 µs, and a typical power consumption of 590 µA. The outputs are rail-to-rail capable with a drive strength of 20 mA.

Feature Summary

• Dual-channel 16-bit resolution with string DAC architecture
• SPI serial interface supporting 50 MHz clock rates and readback
• User-selectable gain configuration for 0–VREF or 0–2×VREF output spans
• Integrated power-on reset circuit with selectable zero-scale or midscale initialization

Applications

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

Procurement Notes

Verify the specific suffix RL7 corresponds to the required tape-and-reel packaging quantity when sourcing. Confirm that the BRUZ designation matches the TSSOP-16 package variant rather than the LFCSP option. Ensure the external reference voltage requirements align with the selected gain setting before procurement.

Selection Notes

Select this component for applications requiring high relative accuracy with ±3 LSB INL at full scale. The device supports a GAIN pin to adjust the output span between 0 V to VREF or 0 V to 2×VREF. Verify that the system logic levels are compatible with the 1.62 V to 5.5 V VLOGIC range for proper SPI communication.

Part Context

This part belongs to the AD5689/AD5687 nanoDAC+ family, which provides low-power, high-accuracy solutions in compact packages. The AD5689 specifically offers 16-bit resolution, whereas the AD5687 variant provides 12-bit resolution. Both share identical pinouts and functional blocks, differing primarily in resolution and linearity specifications.

Replacement Considerations

The AD5687RBRUZ-RL7 serves as a lower-resolution alternative within the same family, offering 12-bit performance. Other members of the nanoDAC+ series may require verification of pin compatibility and interface protocols if substituting for different channel counts or resolutions.