AD5664BRMZ-REEL7

Overview

The AD5664BRMZ-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 with a maximum relative accuracy of ±12 LSBs. The device guarantees monotonicity by design and includes a power-on reset circuit that forces outputs to 0 V upon initialization. It utilizes a versatile 3-wire serial interface supporting clock rates up to 50 MHz, compatible with SPI, QSPI, MICROWIRE, and DSP standards. Power consumption is typically 2.25 mW at 5 V, dropping to 480 nA in power-down mode.

Feature Summary

• Quad 16-bit resolution with ±12 LSBs maximum relative accuracy
• Rail-to-rail output capability with 2.7 V to 5.5 V single-supply operation
• Guaranteed monotonic by design with external reference input
• Per-channel power-down reducing current to 480 nA at 5 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 REEL7 suffix indicates tape-and-reel packaging for automated assembly. Confirm the B grade specification aligns with required accuracy tolerances. Ensure the MSOP-10 package footprint matches the target PCB layout. Validate that the industrial temperature range (-40°C to +105°C) meets environmental requirements.

Selection Notes

Select this component when four independent 16-bit channels are required in a compact surface-mount package. The external reference input allows flexibility in setting output ranges compared to internal reference variants. Consider the 50 MHz serial interface speed if high-throughput data updates are necessary. Verify that the 2 kΩ minimum load requirement fits the application's impedance constraints.

Part Context

This part belongs to the AD5624/AD5664 nanoDAC® series, which shares architectural similarities but differs in resolution. The AD5664 provides 16-bit precision, whereas the AD5624 offers 12-bit resolution. Both utilize the same pinout and serial interface protocols, facilitating design scalability within the same product family.

Replacement Considerations

The AD5664R variant serves as a direct functional replacement if an internal reference is preferred over an external one. Other quad DACs from different manufacturers may require significant schematic redesign due to differing pinouts or interface protocols.