AD5684RBCPZ-RL7

Overview

The AD5684RBCPZ-RL7 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 and offers user-selectable gain settings of 1 or 2 via the GAIN pin, allowing full-scale outputs of 2.5 V or 5 V respectively. Packaged in a compact 3 mm × 3 mm 16-lead LFCSP, it provides high drive capability (20 mA), low power consumption (3.3 mW at 3 V), and guaranteed monotonicity with total unadjusted error within ±0.1% of FSR.

Feature Summary

• Quad 12-bit resolution with ±1 LSB maximum INL
• Internal 2.5 V reference with 2 ppm/°C typical temperature coefficient
• User-selectable gain (1x or 2x) for 2.5 V or 5 V full-scale output
• 50 MHz SPI interface with readback and daisy-chain support

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 RL7 indicates tape and reel packaging when sourcing. Confirm the BC part variant corresponds to the specific grade and package configuration required for the design. Ensure compatibility with the 3 mm x 3 mm LFCSP footprint during PCB layout. Check for RoHS compliance status if mandated by regional regulations.

Selection Notes

Select this component when a quad DAC with 12-bit precision is required in a small form factor. The internal reference simplifies design by eliminating external components. Choose Gain = 2 mode if a 5 V output swing is needed while maintaining low supply voltage operation. Verify that the 20 mA drive current meets load requirements without exceeding thermal limits in the LFCSP package.

Part Context

This model belongs to the AD5684R series, which includes 12-bit variants alongside 14-bit (AD5685R) and 16-bit (AD5686R) counterparts. All share identical pinouts, interfaces, and core specifications, differing primarily in resolution and accuracy grades. The BC designation typically denotes specific manufacturing lot or grade variations within the standard product line.

Replacement Considerations

Direct substitutes include AD5685R and AD5686R for higher resolution needs, provided software handles increased bit depths. For external reference applications, consider the non-R variants (AD5684). Ensure any replacement maintains the 16-lead LFCSP or TSSOP package for mechanical compatibility.