AD5682RBCPZ-RL

Overview

The AD5682RBCPZ-RL7 is a single-channel, 14-bit buffered voltage output digital-to-analog converter (DAC) from the 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 offers selectable output spans of 0 V to VREF or 0 V to 2 × VREF, ensuring monotonic operation by design. Key performance metrics include ±1 LSB INL and DNL, a settling time of 5 µs, and low power consumption of 350 µA in normal mode. It utilizes a versatile 3-wire SPI interface compatible with clock rates up to 50 MHz.

Feature Summary

• 14-bit resolution with ±1 LSB maximum INL and DNL for high relative accuracy.
• Integrated 2.5 V reference with 2 ppm/°C typical temperature coefficient.
• Selectable output span: 0 V to VREF or 0 V to 2 × VREF.
• Low power consumption: 350 µA normal mode, 2 µA power-down mode.
• Robust ESD protection: 4 kV HBM.

Applications

• Process control systems
• Data acquisition systems
• Digital gain and offset adjustment circuits
• Programmable voltage sources

Procurement Notes

Verify the specific suffix 'RL7' corresponds to the tape and reel packaging configuration as defined in the manufacturer's ordering guide. Confirm that the B-grade accuracy rating aligns with application requirements for ±1 LSB INL. Ensure compatibility with the 8-lead LFCSP package dimensions for PCB layout constraints.

Selection Notes

Select this component when a single-channel DAC with 14-bit precision and integrated low-drift reference is required. The AD5682R is suitable for applications needing rail-to-rail output swing and independent logic supply support down to 1.62 V. Consider the AD5683R for 16-bit resolution or the AD5681R for 12-bit resolution if cost or pin count optimization is prioritized.

Part Context

The AD5682R belongs to the nanoDAC+ family, which includes the AD5683R (16-bit), AD5682R (14-bit), and AD5681R (12-bit). These devices share similar architectures, interfaces, and package options, differing primarily in resolution and reference configurations. The AD5682R specifically targets mid-range precision applications requiring better accuracy than 12-bit but lower cost/power than 16-bit solutions.

Replacement Considerations

Direct replacements within the same family include the AD5683R (16-bit) and AD5681R (12-bit), provided resolution differences are acceptable. For external reference variants, the AD5683 may be considered if the internal reference is not needed. Verify pinout compatibility, especially regarding LDAC, RESET, and VLOGIC options across different package variants.