AD5669RBRUZ-2-RL7

Overview

The AD5669RBRUZ-2-RL7 is an octal, 16-bit buffered voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an on-chip 2.5 V reference with a temperature coefficient of 5 ppm/°C, enabling a full-scale output range of 5 V. The device operates on a single 4.5 V to 5.5 V supply and supports I2C-compatible serial interfaces at standard (100 kHz) and fast (400 kHz) modes. Key specifications include a settling time of 6 µs, guaranteed monotonicity by design, and power-down currents as low as 400 nA at 5 V. It is housed in a 16-lead TSSOP package.

Feature Summary

• Octal architecture with 16-bit resolution and rail-to-rail buffered voltage outputs.
• Integrated 2.5 V internal reference with 5 ppm/°C temperature stability.
• I2C interface supporting standard (100 kHz) and fast (400 kHz) communication modes.
• Power-down mode reduces current consumption to 400 nA at 5 V.

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Digital gain and offset adjustment circuits
• Programmable voltage and current sources

Procurement Notes

Verify the specific suffix '-2' confirms the inclusion of the 2.5 V internal reference, which dictates the required 4.5 V to 5.5 V supply voltage range. Confirm the 'BRUZ' designation corresponds to the 16-lead TSSOP package and the '-RL7' indicates reel packaging. Ensure compatibility with the target system's I2C address configuration via the A0 pin.

Selection Notes

Select this component for applications requiring multiple high-resolution channels in a compact form factor. The 16-bit resolution and integrated precision reference simplify design by eliminating external reference components. Verify that the 4.5 V minimum supply voltage aligns with the system power rails, as lower voltages are not supported with the internal 2.5 V reference enabled.

Part Context

This part belongs to the denseDAC family, designed for space-constrained applications. It shares functional similarities with the AD5629R but offers higher 16-bit resolution compared to the 12-bit variant. The device integrates power-on reset logic to ensure outputs initialize to zero scale or midscale upon startup.

Replacement Considerations

The AD5629RBRUZ-2-RL7 serves as a 12-bit alternative within the same package and interface family. Cross-model substitution requires verification of resolution requirements and linearity specifications, as the 16-bit AD5669R provides finer output steps than the 12-bit AD5629R.