AD5668ARUZ-2REEL7

Overview

The AD5668ARUZ-2REEL7 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 integrated 2.5 V reference with 5 ppm/°C temperature coefficient, providing a 0 V to 5 V output range. The device supports serial interfaces including SPI, QSPI, Microwire, and DSP standards with clock rates up to 50 MHz. Key specifications include ±1 LSB differential nonlinearity, rail-to-rail output swing, and power-down modes reducing current consumption to 400 nA at 5 V. It is housed in a 16-lead TSSOP package.

Feature Summary

• Octal architecture with 16-bit resolution and rail-to-rail buffered voltage outputs
• Integrated 2.5 V precision reference with 5 ppm/°C temperature coefficient
• Versatile 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP protocols
• Power-down capability reduces current consumption to 400 nA at 5 V

Applications

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

Procurement Notes

Verify the suffix 'REEL7' indicates tape-and-reel packaging containing 1000 units. Confirm the '-2' designation corresponds to the internal 2.5 V reference configuration for a 5 V output span. Ensure compatibility with the 16-lead TSSOP (RU-16) footprint during procurement planning.

Selection Notes

Select this component when eight independent 16-bit channels are required within a small footprint. The internal 2.5 V reference eliminates the need for external precision references if a 5 V full-scale output is acceptable. Verify that the 50 MHz serial clock rate meets system timing requirements and that the 16-lead TSSOP package fits the PCB layout constraints.

Part Context

This part belongs to the nanoDAC+ family, which includes the AD5628 (12-bit) and AD5648 (14-bit). The AD5668 offers the highest resolution in this series. The 'ARUZ' prefix denotes the industrial temperature range (-40°C to +105°C) and the 16-lead TSSOP package. The suffix '2' specifies the internal 2.5 V reference variant.

Replacement Considerations

The AD5668ARUZ-2 is functionally equivalent to the tube-packaged AD5668ARUZ-2. For different resolutions, consider the AD5648 or AD5628. Cross-family replacements like the MS5268 may offer pin compatibility but require verification of electrical parameters.