AD5684RBRUZ

Overview

The AD5684RBRUZ is a quad, 12-bit buffered voltage output Digital-to-Analog Converter (DAC) from Analog Devices' nanoDAC+ family. It features an internal 2.5 V reference with a typical drift of 2 ppm/°C and operates on a single 2.7 V to 5.5 V supply. The device supports SPI interfaces up to 50 MHz with readback or daisy-chain capabilities. Key electrical specifications include a maximum total unadjusted error (TUE) of ±0.1% of full-scale range (FSR), a gain error of ±0.1% FSR, and an offset error of ±1.5 mV. It offers high drive capability of 20 mA and low power consumption of 3.3 mW at 3 V.

Feature Summary

• Quad 12-bit resolution with ±1 LSB maximum relative accuracy (INL).
• Integrated 2.5 V reference with 2 ppm/°C typical temperature coefficient.
• User-selectable gain of 1 or 2 via GAIN pin for 0–2.5 V or 0–5 V output spans.
• Power-on reset circuit with RSTSEL pin for zero scale or midscale initialization.

Applications

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

Procurement Notes

Verify the ordering suffix BRUZ corresponds to the 16-lead LFCSP package (3 mm × 3 mm) and the specific grade (A or B) required for your application's accuracy and temperature performance specifications. Confirm that the internal reference configuration meets your system's noise and drift requirements without external components.

Selection Notes

Select this component when a compact quad DAC solution with integrated precision reference is needed. The 12-bit resolution suits applications requiring moderate accuracy but high channel density. Ensure the load impedance and capacitive load requirements fall within the stability limits specified in the datasheet, particularly when driving heavy capacitive loads.

Part Context

This part belongs to the AD5686R/AD5685R/AD5684R family, differentiated primarily by resolution: 16-bit (AD5686R), 14-bit (AD5685R), and 12-bit (AD5684R). All members share identical pinouts, interface protocols, and reference architectures, allowing for design flexibility across different accuracy tiers within the same footprint.

Replacement Considerations

Direct functional replacements within the same family include AD5685R and AD5686R if higher resolution is acceptable. For external reference variants, consider AD5684 or AD5694, though these lack the internal reference and may require additional board space and design adjustments for stability and accuracy.