AD5744RCSUZ

Overview

The AD5744RCSUZ is a quad, 14-bit digital-to-analog converter featuring serial input and bipolar voltage outputs. It operates from supply voltages of ±11.4 V to ±16.5 V with a nominal full-scale output range of ±10 V. The device guarantees integral nonlinearity (INL) and differential nonlinearity (DNL) of ±1 LSB maximum, ensuring monotonicity. Key electrical parameters include a maximum settling time of 10 μs, low noise spectral density of 60 nV/√Hz, and an integrated 5 V reference with a temperature coefficient of 10 ppm/°C. It utilizes iCMOS technology and supports DSP/microcontroller-compatible serial interfaces up to 30 MHz.

Feature Summary

• Quad 14-bit resolution with ±1 LSB INL/DNL accuracy
• Integrated 5 V reference buffer and output amplifiers
• Programmable output ranges: ±10 V, ±10.2564 V, or ±10.5263 V
• Simultaneous updating via LDAC pin for synchronized channel control

Applications

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

Procurement Notes

Verify the specific package variant, as the CSUZ suffix denotes a 32-lead TQFP in a tube. Confirm power supply requirements match the ±11.4 V to ±16.5 V analog rails and 2.7 V to 5.25 V digital rail specifications. Ensure compatibility with the 30 MHz serial clock interface timing constraints during system integration.

Selection Notes

Select this component when high accuracy and simultaneous multi-channel updates are required. The internal reference simplifies design by eliminating external precision references. Consider the 10 μs settling time for dynamic applications. Verify that the load capacitance does not exceed 200 pF without additional buffering to maintain stability.

Part Context

The AD5744R belongs to Analog Devices' iCMOS family, designed for industrial instrumentation requiring high-voltage operation. It serves as a high-performance alternative to older bipolar DACs, offering reduced power consumption and smaller package sizes while maintaining robust analog performance at ±15 V supply levels.

Replacement Considerations

The AD5744 is the predecessor model; verify if the 'R' revision improvements are necessary. The AD5764 offers 16-bit resolution but may require different interface timing adjustments. Cross-reference pinouts and register maps when substituting to ensure software compatibility.