AD5664BRMZ

Overview

The AD5664BRMZ is a quad, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family by Analog Devices. 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. Key electrical parameters include a settling time of 7 μs for full-scale transitions and a typical power consumption of 2.25 mW at 5 V. It utilizes a versatile 3-wire serial interface supporting clock rates up to 50 MHz.

Feature Summary

• Quad-channel 16-bit resolution with rail-to-rail output amplifiers
• Guaranteed monotonic operation by design with ±12 LSB max relative accuracy
• Low power consumption: 2.25 mW at 5 V; 480 nA in power-down mode
• Power-on reset circuit ensures outputs initialize to 0 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 package variant during procurement, as the AD5664 series is available in both 10-lead MSOP and 3 mm × 3 mm LFCSP_WD packages. Confirm that the required grade (A or B) meets the application's accuracy specifications, as performance tolerances vary between grades. Ensure the external reference voltage source matches the DAC's input range requirements.

Selection Notes

Select the AD5664BRMZ when four independent 16-bit voltage outputs are required in a compact form factor. This component is suitable for applications demanding low power consumption, such as battery-operated devices. Designers must provide an external reference voltage, as the device does not include an internal reference. Verify that the system interface supports the 3-wire serial protocol with SCLK frequencies up to 50 MHz.

Part Context

The AD5664BRMZ belongs to the nanoDAC family, which includes the AD5624 (12-bit) and AD5644 (14-bit). These devices share similar architectural features, including the resistor string DAC core and output buffer design. The BRMZ suffix indicates the industrial temperature range (-40°C to +105°C) and the MSOP package option.

Replacement Considerations

The AD5664R provides similar functionality but includes an internal reference voltage, eliminating the need for an external reference component. Other family members like the AD5624 offer lower resolution (12-bit) with potentially different power characteristics.