AD5663ARMZ-REEL7

Overview

The AD5663ARMZ-REEL7 is a dual 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family, manufactured by Analog Devices. It operates on a single supply ranging from 2.7 V to 5.5 V and features rail-to-rail output swing. The device incorporates a power-on reset circuit ensuring outputs initialize to zero scale or midscale. It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, Microwire, and DSP standards, supporting clock rates up to 50 MHz. Key performance metrics include a maximum relative accuracy of ±16 LSBs for the A grade and ±12 LSBs for the B grade, with a typical settling time of 4 μs.

Feature Summary

• Dual 16-bit resolution with guaranteed monotonicity by design
• Rail-to-rail output capability within the 2.7 V to 5.5 V supply range
• Hardware LDAC and CLR functions for synchronized updates and asynchronous clearing
• Per-channel power-down mode reducing current consumption to 480 nA at 5 V

Applications

• Process control systems requiring precise analog signal generation
• Portable battery-powered instruments due to low power consumption
• Programmable voltage and current sources
• Digital gain and offset adjustment circuits

Procurement Notes

Verify the specific grade (A or B) required for your application, as accuracy specifications differ between ±16 LSBs and ±12 LSBs respectively. Confirm that the MSOP-10 package aligns with your PCB footprint requirements. Ensure an external reference voltage source is available, as the AD5663 does not contain an internal reference. Check compatibility with your system's serial interface timing constraints, particularly regarding the 50 MHz maximum SCLK frequency.

Selection Notes

Select the AD5663 when dual channels are needed in a compact form factor. Choose this component over the AD5623 or AD5643 if 16-bit resolution is mandatory. Consider the LFCSP_WD package option if a smaller 3 mm × 3 mm footprint is preferred over the standard MSOP-10. Ensure the application can accommodate the requirement for an external reference voltage, as this directly impacts the output range and accuracy.

Part Context

The AD5663 belongs to the nanoDAC family, which focuses on low-power, high-resolution DAC solutions. It is functionally similar to the AD5623 and AD5643 but offers higher 16-bit resolution compared to their 12-bit and 14-bit counterparts. The 'ARMZ' suffix indicates the MSOP-10 package and lead-free construction, while '-REEL7' denotes tape-and-reel packaging for automated assembly.

Replacement Considerations

The AD5663BCPZ-REEL7 serves as a direct replacement offering the same electrical characteristics but housed in a 10-lead LFCSP_WD package instead of MSOP-10. For applications requiring lower resolution, the AD5643R or AD5623R may be considered, though they offer 14-bit and 12-bit resolution respectively.