AD5765CSUZ-REEL7

Overview

The AD5765CSUZ-REEL7 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 output amplifiers with a nominal full-scale range of ±4.096 V, programmable up to ±4.311 V. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB for the C grade, a settling time of 10 μs maximum, and low noise spectral density of 70 nV/√Hz. It utilizes an iCMOS process and supports a serial interface clocking up to 30 MHz.

Feature Summary

• Quad channel architecture with 16-bit resolution and guaranteed monotonicity
• Integrated reference buffers and output amplifiers supporting ±4.096 V nominal output
• Digital offset and gain adjustment registers per channel for calibration
• On-chip die temperature sensor and asynchronous CLR to zero code function

Applications

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

Procurement Notes

Verify the specific grade (B or C) required for INL performance, as the datasheet distinguishes between ±2 LSB and ±1 LSB maximum errors. Confirm package availability in the 32-lead TQFP format associated with the CSUZ suffix. Ensure power supply rails match the specified ±4.75 V to ±5.25 V range for optimal operation.

Selection Notes

Select the C grade variant if strict ±1 LSB INL and DNL specifications are mandatory for the application. Consider the integrated reference buffers to reduce external component count compared to devices requiring external buffering. Verify that the 30 MHz serial interface speed meets the system's data throughput requirements.

Part Context

The AD5765 belongs to the AD576x family of high-accuracy DACs. Related parts include the AD5764 (±10 V output) and AD5763 (dual channel). The CSUZ suffix indicates the 32-lead TQFP package, while REEL7 denotes the tape and reel packaging configuration for automated assembly.

Replacement Considerations

The AD5763 serves as a dual-channel alternative within the same series. The AD5764 offers similar performance but with a wider ±10 V output range. Cross-referencing pin compatibility and supply voltage requirements is necessary when substituting these related devices.