AD5764CSUZ

Overview

The AD5764CSUZ is a quad, 16-bit digital-to-analog converter (DAC) featuring bipolar voltage outputs. It operates from analog supply voltages of ±11.4 V to ±16.5 V and digital supplies of 2.7 V to 5.25 V. The device provides integrated output amplifiers with a nominal full-scale range of ±10 V. Key performance metrics include a maximum settling time of 10 μs, low noise spectral density of 60 nV/√Hz, and guaranteed monotonicity. Accuracy grades vary, with the C grade ensuring ±1 LSB maximum integral nonlinearity (INL) and differential nonlinearity (DNL).

Feature Summary

• Quad-channel architecture with independent digital offset and gain adjustment registers per channel.
• Serial interface compatible with DSP and microcontrollers, supporting clock rates up to 30 MHz.
• Simultaneous updating capability for all channels via the LDAC pin.
• Integrated reference buffers and proprietary power-up/power-down control circuitry.

Applications

• Industrial automation systems
• Open-loop and closed-loop servo control
• Process control applications
• Data acquisition systems
• Automatic test equipment

Procurement Notes

Verify the specific grade suffix against the datasheet ordering guide to confirm accuracy specifications. Ensure the selected package variant matches the required thermal and mechanical constraints for the target PCB layout.

Selection Notes

Select based on required linearity accuracy; Grade C offers ±1 LSB INL/DNL while other grades provide different tolerances. Confirm that the external reference voltage falls within the 1 V to 7 V input range to achieve the desired output swing.

Part Context

This component belongs to the AD5764 family of high-precision DACs. Related devices include the AD5764R, which integrates an internal voltage reference, and the AD5744R, a 14-bit variant. The AD5764 utilizes iCMOS process technology to support higher voltage levels and reduced power consumption.

Replacement Considerations

The AD5764R serves as a direct functional alternative with an integrated internal reference, eliminating the need for external reference components. Designers should verify pin compatibility and register mapping when transitioning between these variants.