AD5668BRUZ-1REEL7

Overview

The AD5668BRUZ-1REEL7 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 an internal 1.25 V reference with 5 ppm/°C temperature coefficient, providing a 2.5 V full-scale output range. The device guarantees monotonicity by design and includes a power-on reset circuit that initializes outputs to 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. Power consumption reduces to 400 nA at 5 V in power-down mode.

Feature Summary

• Octal architecture with 16-bit resolution and rail-to-rail buffered voltage outputs
• Internal 1.25 V reference (5 ppm/°C) enabling 2.5 V full-scale output range
• Power-on reset ensures DAC outputs initialize to 0 V upon startup
• Low power consumption with 400 nA current draw in power-down mode at 5 V

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Digital gain and offset adjustment circuits
• Programmable voltage and current sources

Procurement Notes

Verify the specific suffix '1' confirms the inclusion of the 1.25 V internal reference for a 2.5 V output span. Confirm the 'REEL7' designation indicates tape-and-reel packaging. Ensure the 'B' grade meets the required linearity specifications, specifically ±16 LSB INL and ±1 LSB DNL. Check RoHS compliance status as indicated in official documentation.

Selection Notes

Select this component when eight independent 16-bit channels are required in a compact footprint. The internal 1.25 V reference makes it suitable for applications needing a 2.5 V output swing without external precision references. Compare against AD5668-2 or -3 variants if a 5 V output range is preferred instead. Ensure the system interface supports the 3-wire synchronous protocol with SCLK frequencies up to 50 MHz.

Part Context

This part belongs to the AD5628/AD5648/AD5668 denseDAC family, which offers pin-compatible options for 12-, 14-, and 16-bit resolutions. The AD5668 variant provides the highest resolution within this low-power series. The device is available in 16-lead TSSOP, 16-lead LFCSP, and 16-ball WLCSP packages, allowing flexibility in PCB layout and thermal management strategies.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.