AD5668BCBZ-1-RL7

Overview

The AD5668BCBZ-1-RL7 is an octal, 16-bit, buffered voltage-output digital-to-analog converter (DAC) from Analog Devices. It operates on a single 2.7 V to 5.5 V supply and features a 1.25 V internal reference with 5 ppm/°C temperature coefficient, providing a 2.5 V full-scale output range. The device includes a power-on reset circuit that ensures outputs start at zero scale. It supports a versatile 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, with clock rates up to 50 MHz. The part is housed in a 16-ball WLCSP package.

Feature Summary

• Octal architecture with 16-bit resolution and rail-to-rail buffered voltage outputs
• Integrated 1.25 V reference (5 ppm/°C) enabling 2.5 V full-scale output range
• Power-on reset to zero scale with software-selectable power-down modes down to 400 nA at 5 V
• Versatile 3-wire serial interface supporting SCLK frequencies up to 50 MHz

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Programmable voltage and current sources

Procurement Notes

Verify the specific suffix -1-RL7 confirms the 1.25 V internal reference configuration and WLCSP packaging. Confirm the B grade accuracy specifications against application requirements. Ensure the ordering quantity matches the reel packaging format indicated by the RL7 suffix.

Selection Notes

Select this component when eight independent 16-bit channels are required in a small footprint. The -1 suffix indicates a 1.25 V internal reference, suitable for applications requiring a 2.5 V output span. Compare DNL and INL specifications if higher precision than the standard B grade is needed. Consider the WLCSP package constraints for PCB thermal design.

Part Context

This part belongs to the AD5628/AD5648/AD5668 denseDAC family. The AD5668 variant specifically offers 16-bit resolution. The -1 suffix distinguishes it from -2 and -3 variants by specifying the 1.25 V internal reference instead of 2.5 V. The BCBZ designation identifies the 16-ball WLCSP package type.

Replacement Considerations

Direct pin-compatible replacements within the same family include AD5668BRUZ-1 (TSSOP package) or AD5668BCPZ-1 (LFCSP package). Verify that the replacement maintains the -1 suffix for the 1.25 V reference and matches the required package outline dimensions.