AD5734AREZ-REEL7

Overview

The AD5734AREZ-REEL7 is a quad, 14-bit serial input digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It operates from single supplies of +4.5 V to +16.5 V or dual supplies of ±4.5 V to ±16.5 V. The device features software-programmable output ranges including +5 V, +10 V, +10.8 V, ±5 V, ±10 V, and ±10.8 V. Key electrical specifications include a maximum integral nonlinearity (INL) of ±4 LSB, a differential nonlinearity (DNL) of ±1 LSB, and a typical settling time of 10 µs. It utilizes an iCMOS process technology and communicates via a DSP/microcontroller-compatible serial interface.

Feature Summary

• Quad channel architecture with 14-bit resolution
• Software-selectable unipolar/bipolar voltage output ranges
• Integrated reference buffers and power-up/power-down control circuitry
• Simultaneous updating capability via LDAC pin

Applications

• Industrial automation systems
• Closed-loop servo control applications
• Process control instrumentation
• Automotive test and measurement equipment
• Programmable logic controllers

Procurement Notes

Verify the specific ordering suffix 'REEL7' corresponds to tape-and-reel packaging requirements for automated assembly lines. Confirm that the 'A' version meets the required Total Unadjusted Error (TUE) specifications, as the datasheet distinguishes between A and B versions regarding accuracy limits. Ensure compatibility with the target system's supply voltage constraints before procurement.

Selection Notes

Select this component when four independent 14-bit channels are required within a single package. Verify that the serial interface timing parameters align with the host microcontroller's clock speeds. Consider the thermal impedance of the 24-lead TSSOP package if operating near the upper temperature limits or under high load conditions. Ensure the external reference voltage falls within the specified 2 V to 3 V range for optimal performance.

Part Context

This part belongs to the AD5724/AD5734/AD5754 family of complete quad DACs. While sharing the same functional block diagram and interface protocols, the AD5734 specifically provides 14-bit resolution, distinguishing it from the 12-bit AD5724 and the 16-bit AD5754. All variants share identical pinouts and power supply requirements.

Replacement Considerations

The AD5724AREZ-REEL7 serves as a parameter-equivalent alternative offering 12-bit resolution. The AD5754AREZ-REEL7 provides higher 16-bit resolution. Both share the same package and interface but differ in linearity specifications and update rates.