AD5664RBRMZ-5

Overview

The AD5664RBRMZ-5 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 an integrated 2.5 V reference with a temperature coefficient of 5 ppm/°C. The device supports serial interfaces including SPI, QSPI, Microwire, and DSP at clock rates up to 50 MHz. Key electrical parameters include a settling time of 4 μs, differential nonlinearity of ±1 LSB, and integral nonlinearity of ±8 LSB typical. It incorporates power-on reset to zero scale and per-channel power-down modes.

Feature Summary

• Quad 16-bit resolution with rail-to-rail output swing
• Integrated 2.5 V precision reference (5 ppm/°C)
• Versatile 3-wire serial interface supporting up to 50 MHz
• Per-channel power-down reducing current to 480 nA at 5 V

Applications

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

Procurement Notes

Verify the specific suffix '-5' confirms the internal 2.5 V reference configuration. Confirm package availability matches the required MSOP-10 or LFCSP form factor. Ensure the B grade industrial temperature range (-40°C to +105°C) meets system requirements. Cross-reference pinouts for any legacy pin-compatible replacements.

Selection Notes

Select this component when four independent 16-bit channels are required in a compact footprint. The internal 2.5 V reference simplifies design by eliminating external reference components. Consider the 4 μs settling time for bandwidth requirements. Verify that the 50 MHz serial clock speed is compatible with the host microcontroller's capabilities.

Part Context

This part belongs to the AD56x4R series, which includes 12-bit (AD5624R) and 14-bit (AD5644R) variants. These devices share pin compatibility and functional similarities, differing primarily in resolution and linearity specifications. The 'R' indicates RoHS compliance, while 'B' denotes the industrial temperature grade.

Replacement Considerations

Pin-compatible alternatives within the same family include the AD5664R (external reference only) and lower-resolution models like the AD5644R or AD5624R if reduced accuracy is acceptable. Ensure replacement parts maintain the required reference voltage and serial interface compatibility.