AD5669RBCPZ-1-RL7

Overview

The AD5669RBCPZ-1-RL7 is an octal, 16-bit buffered voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 2.7 V to 5.5 V supply range and integrates a 1.25 V on-chip reference with 5 ppm/°C temperature coefficient, yielding a 2.5 V full-scale output range. The device supports I2C-compatible serial interfaces at standard (100 kHz) and fast (400 kHz) modes. Key specifications include ±1 LSB DNL, guaranteed monotonicity by design, and power-down currents as low as 200 nA at 3 V. It is housed in a 16-lead LFCSP package.

Feature Summary

• Octal architecture with 16-bit resolution and rail-to-rail buffered voltage outputs
• Integrated 1.25 V reference with 5 ppm/°C stability for 2.5 V full-scale range
• I2C interface supporting standard (100 kHz) and fast (400 kHz) modes
• Power-down mode reduces current consumption to 200 nA at 3 V

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Programmable voltage and current sources

Procurement Notes

Verify the suffix -1 indicates the internal 1.25 V reference configuration. Confirm the BC package code corresponds to the 16-lead LFCSP form factor. Ensure the RL7 designation matches the required reel quantity for manufacturing integration. Cross-reference the specific grade (A or B) against application linearity requirements.

Selection Notes

Select this component when eight independent 16-bit channels are required within a compact footprint. The integrated 1.25 V reference simplifies board layout compared to external reference solutions. Verify that the 2.7 V minimum supply voltage aligns with the system's power rails. Consider the 400 kHz I2C speed if high update rates are necessary for the application.

Part Context

This part belongs to the denseDAC family, designed for high channel density in space-constrained applications. It shares the same pinout and interface logic as the 12-bit AD5629R variant, allowing for potential design flexibility between resolution options while maintaining identical physical dimensions and software compatibility.

Replacement Considerations

The AD5669RBCPZ-2-RL7 serves as a direct functional substitute but utilizes a 2.5 V internal reference, resulting in a 5 V full-scale output range instead of 2.5 V. Designers must verify that the increased output swing does not exceed downstream circuit input limits.