AD5663RBRMZ-5

Overview

The AD5663RBRMZ-5 is a dual-channel, 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 standards at clock rates up to 50 MHz. Key specifications include a maximum settling time of 7 µs, guaranteed monotonicity by design, and power-on reset functionality that ensures outputs initialize to zero scale.

Feature Summary

• Dual 16-bit resolution with rail-to-rail buffered voltage outputs
• Integrated 2.5 V precision reference (5 ppm/°C)
• Versatile 3-wire serial interface supporting up to 50 MHz
• Hardware LDAC and CLR functions for synchronized updates

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Programmable voltage and current sources

Procurement Notes

Verify the specific suffix 'REEL7' against official documentation to confirm tape-and-reel packaging requirements. Confirm RoHS compliance status through the manufacturer's latest certification documents before procurement.

Selection Notes

Select this component when a dual-channel 16-bit DAC with an internal 2.5 V reference is required. Ensure the application utilizes a single 2.7 V to 5.5 V supply and requires a 10-lead MSOP package. Verify that the 7 µs settling time meets system timing constraints.

Part Context

This part belongs to the AD5623R/AD5643R/AD5663R series, which are low-power, pin-compatible members of the nanoDAC family. The AD5663R variant specifically provides 16-bit resolution, distinguishing it from the 12-bit AD5623R and 14-bit AD5643R counterparts within the same package.

Replacement Considerations

The AD5663RBRMZ-3 serves as a functional replacement if a 1.25 V internal reference is acceptable instead of the 2.5 V reference found in the -5 variant.

FAQ

What is the default state of the internal reference upon power-up?

The internal reference is off at power-up by default, allowing the use of an external reference if desired.

How does the Power-On Reset circuit function?

The Power-On Reset circuit ensures the DAC output powers up to 0 V and remains there until a valid write operation takes place.

What is the maximum serial clock frequency supported?

The device supports a versatile 3-wire serial interface that operates at clock rates up to 50 MHz.