AD5671RBRUZ

Overview

The AD5671RBRUZ is an octal, 12-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It features a 2.5 V internal reference with 2 ppm/°C drift and operates on a single 2.7 V to 5.5 V supply. The device includes a user-selectable gain of 1 or 2, providing full-scale outputs of 2.5 V or 5 V respectively. It utilizes a 400 kHz I²C-compatible serial interface and incorporates a power-on reset circuit ensuring outputs start at zero scale. Key static performance metrics include ±1 LSB maximum INL, ±0.12% maximum offset error, and ±0.06% maximum gain error.

Feature Summary

• Octal architecture with eight independent 12-bit DAC channels
• Integrated 2.5 V reference with 2 ppm/°C temperature coefficient
• User-selectable amplifier gain (×1 or ×2) for 2.5 V or 5 V full-scale output
• I²C serial interface with 400 kHz clock speed and 1.8 V logic compatibility

Applications

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

Procurement Notes

Verify the specific suffix BRUZ corresponds to the 20-lead TSSOP package when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering code matches the required revision level for integration into designs requiring specific timing characteristics.

Selection Notes

Select this component for applications requiring multiple low-power analog outputs controlled via I²C. The internal reference eliminates external precision components, reducing board space. Verify that the load capacitance does not exceed 2 nF without a series resistor to maintain stability. Consider the 15 mA output drive capability against system requirements.

Part Context

This part belongs to the nanoDAC+ family, which integrates high-precision references and buffer amplifiers. The AD5671R is the 12-bit variant of the AD5675R (16-bit). Both share identical pinouts and interfaces, allowing for design flexibility between resolution requirements while maintaining software compatibility.

Replacement Considerations

The AD5675R serves as a higher-resolution alternative within the same package and interface ecosystem. For SPI-based designs, the AD5672R (12-bit) or AD5676R (16-bit) are functional equivalents with different serial protocols.