AD5664ARMZ-REEL7

Overview

The AD5664ARMZ-REEL7 is a quad, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It operates on a single 2.7 V to 5.5 V supply and features rail-to-rail output swing. The device guarantees monotonicity by design with a maximum relative accuracy of ±12 LSBs. It incorporates a power-on reset circuit ensuring outputs start at 0 V and includes per-channel power-down modes reducing current consumption to 480 nA at 5 V. Communication is handled via a versatile 3-wire serial interface supporting clock rates up to 50 MHz.

Feature Summary

• 16-bit resolution with ±12 LSBs maximum relative accuracy
• Rail-to-rail output amplifiers operating from 2.7 V to 5.5 V
• Per-channel power-down mode reduces current to 480 nA at 5 V
• 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet, as the AD5664 is available in both 10-lead MSOP and 3 mm × 3 mm LFCSP_WD packages. Confirm that the required grade (A or B) matches the application's linearity specifications. Ensure the external reference voltage source meets the input range requirements of 0.75 VDD to VDD for proper operation.

Selection Notes

Select this component when low power consumption and high resolution are critical for portable applications. The AD5664 requires an external reference voltage; ensure the chosen reference supports the required output range. For designs requiring internal references, consider the AD5664R variant instead. Verify that the system interface can support the 50 MHz serial clock speed if high-speed updates are necessary.

Part Context

The AD5664ARMZ-REEL7 belongs to the nanoDAC family, which also includes the 12-bit AD5624 and variants with internal references like the AD5664R. These devices share similar pinouts and functional architectures but differ in resolution and reference integration. The 'REEL7' suffix indicates tape and reel packaging suitable for automated surface-mount assembly processes.

Replacement Considerations

The AD5664R serves as a direct replacement if an internal reference is preferred, though it lacks the flexibility of an external reference. The AD5624 offers a lower-cost alternative for applications requiring only 12-bit resolution. Cross-model compatibility exists within the nanoDAC family regarding pin configurations and serial interfaces.