AD5679RBCPZ-1-RL7

Overview

The AD5679RBCPZ-1-RL7 is a 16-channel, 16-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It integrates a 2.5 V internal voltage reference with a typical temperature coefficient of 2 ppm/°C. The device operates on a single 2.7 V to 5.5 V supply and features a user-selectable gain pin for full-scale outputs of 2.5 V or 5 V. It supports a 50 MHz SPI interface with readback capabilities and includes a power-on reset circuit ensuring zero-scale or midscale startup. The component is housed in a 28-lead, 4 mm × 4 mm LFCSP package.

Feature Summary

• 16 channels with high relative accuracy: ±4 LSB maximum integral nonlinearity (INL).
• Integrated low-drift 2.5 V voltage reference with 2 ppm/°C typical temperature coefficient.
• User-selectable gain via GAIN pin for 2.5 V or 5 V full-scale output ranges.
• 50 MHz serial peripheral interface (SPI) supporting daisy-chain and readback operations.

Applications

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

Procurement Notes

Verify the specific suffix '-1' against the manufacturer's ordering guide to confirm the power-up state configuration. The datasheet indicates that model variants ending in '-1' typically power up to zero-scale, whereas other suffixes may default to midscale. Ensure the selected variant aligns with the system's required initial output state upon power application.

Selection Notes

Select this component when high channel density is required within a compact 4 mm × 4 mm footprint. It is suitable for applications demanding low drift and high accuracy, such as precision instrumentation. Verify that the load capacitance does not exceed 2 nF without external series resistance to maintain stability, and ensure the logic voltage range matches the 1.8 V compatibility requirements.

Part Context

This part belongs to the nanoDAC+ family, which provides multi-channel DAC solutions with integrated references. The AD5679R variant specifically offers 16-bit resolution and an internal reference, distinguishing it from the AD5679 which requires an external reference. The 'RL7' suffix denotes reel packaging for automated surface-mount assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.