AD5765CSUZ

Overview

The AD5765CSUZ is a quad, 16-bit digital-to-analog converter (DAC) featuring serial input and bipolar voltage output. It operates from ±4.75 V to ±5.25 V analog supplies and a 2.7 V to 5.25 V digital supply. The device provides integrated reference buffers and output amplifiers with a nominal full-scale range of ±4.096 V. Key performance metrics include a maximum integral nonlinearity (INL) error of ±1 LSB for the C grade, a settling time of 10 μs, and low noise spectral density of 70 nV/√Hz. It supports simultaneous updating via LDAC and includes on-chip features such as a die temperature sensor and programmable short-circuit protection.

Feature Summary

• Quad 16-bit resolution with guaranteed monotonicity and ±1 LSB INL/DNL error
• Integrated reference buffers and output amplifiers supporting ±4.096 V nominal output
• Serial interface compatible with DSP/microcontrollers, operating up to 30 MHz
• On-chip die temperature sensor and programmable short-circuit current protection

Applications

• Industrial automation systems
• Open- and closed-loop servo control
• Process control applications
• Data acquisition systems
• High accuracy instrumentation

Procurement Notes

Verify the specific grade (B or C) required for your application, as INL specifications differ between grades. Confirm package availability in the 32-lead TQFP format. Ensure that the ordering suffix matches the desired tape-and-reel quantity if applicable. Check for moisture sensitivity levels and storage requirements prior to assembly.

Selection Notes

Select the AD5765C for applications requiring ±1 LSB maximum INL error. Ensure the external reference voltage is within the 1 V to 2.1 V range to program the desired output span. Verify that the digital supply voltage (DVCC) meets the 2.7 V to 5.25 V requirement for logic compatibility. Consider the thermal resistance of the TQFP package for heat dissipation in high-density layouts.

Part Context

The AD5765 belongs to the AD576x family of high-precision DACs. Related devices include the AD5764 (±10 V output) and AD5763 (dual channel). The CSUZ suffix indicates the C grade industrial temperature range (-40°C to +105°C) and the 32-lead TQFP package. This component is designed for iCMOS process technology, optimizing power consumption and performance for analog systems.

Replacement Considerations

For dual-channel requirements, consider the AD5763. For higher voltage outputs, the AD5764 is available. Direct pin-compatible replacements are not explicitly listed in the provided documentation; verify electrical parameters and pinout compatibility before substituting.