AD5765BSUZ-REEL7

Overview

The AD5765BSUZ-REEL7 is a quad, 16-bit serial input digital-to-analog converter (DAC) from Analog Devices. It operates on ±4.75 V to ±5.25 V analog supplies and 2.7 V to 5.25 V digital supply. The device provides bipolar voltage outputs with a nominal full-scale range of ±4.096 V, configurable via coarse gain registers. Key electrical specifications include a maximum integral nonlinearity (INL) of ±2 LSB for the B grade, ±1 LSB differential nonlinearity (DNL), and a maximum settling time of 10 μs. It features integrated reference buffers, a die temperature sensor, and programmable short-circuit protection.

Feature Summary

• Quad 16-bit resolution with ±1 LSB max DNL and ±2 LSB max INL (B Grade)
• Programmable output ranges: ±4.096 V, ±4.201 V, or ±4.311 V
• Low noise performance: 70 nV/√Hz spectral density
• Integrated die temperature sensor and digital offset/gain adjustment registers

Applications

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

Procurement Notes

Verify the specific grade suffix 'B' in the part number AD5765BSUZ-REEL7 against the manufacturer's ordering guide to confirm accuracy specifications. Ensure the REEL7 packaging designation matches the required quantity per reel. Confirm that the 32-lead TQFP package dimensions align with the target PCB footprint.

Selection Notes

Select this component when four independent 16-bit channels are required with high accuracy. The B grade offers ±2 LSB INL, suitable for general high-precision applications. For stricter linearity requirements, consider the C grade variant which guarantees ±1 LSB INL. Ensure the system can provide the required ±5 V analog supplies and 2.7–5.25 V digital logic levels.

Part Context

This part belongs to the AD5765 family of high-accuracy DACs. It is functionally similar to the AD5764 (±10 V output) and AD5763 (dual channel). The 'SUZ' indicates the 32-lead TQFP package, while 'REEL7' denotes the tape and reel packaging format. The 'B' suffix specifies the accuracy bin relative to the standard C grade.

Replacement Considerations

Direct pin-compatible replacements within the same series include the AD5765CSUZ-REEL7 for tighter INL specifications. For different voltage ranges, the AD5764 provides ±10 V outputs. The AD5763 offers a dual-channel version of this architecture.