AD8582ARZ

Overview

The AD8582ARZ is a complete, dual 12-bit digital-to-analog converter (DAC) designed for single +5 V operation. It features a parallel data interface with double-buffered input registers and simultaneous output updates via shared load strobes. The device integrates a laser-trimmed 2.5 V bandgap reference and rail-to-rail output amplifiers, providing a 4.095 V full-scale voltage range with 1 mV/LSB resolution. Key electrical specifications include a typical settling time of 16 μs to ±1 LSB, power dissipation of 35 mW at maximum logic levels, and an operating temperature range from –40°C to +85°C. The component utilizes a 24-lead SOIC package.

Feature Summary

• Dual 12-bit DAC architecture with integrated 2.5 V reference and rail-to-rail output amplifiers
• High-speed parallel interface supporting direct connection to processors without wait states
• Double-buffered input structure allowing simultaneous or independent channel updates
• Low power consumption of 5 mW typical with optimized CMOS logic levels

Applications

• Digitally controlled calibration systems
• Portable equipment requiring low power supply
• Servo control loops
• Process control equipment
• PC peripherals

Procurement Notes

Verify the specific ordering suffix 'R' corresponds to the 24-Lead SOIC package option as defined in the manufacturer's ordering information. Confirm that the required operating temperature range aligns with the specified –40°C to +85°C industrial grade. Ensure design compatibility with the single +5 V supply requirement and check if external buffering is necessary for the VREF pin if driving loads beyond internal capabilities.

Selection Notes

Select this component when a monolithic solution eliminating external references and buffers is required for +5 V systems. The AD8582ARZ is suitable for applications needing precise 1 mV/LSB steps and fast settling times. Consider the 24-pin SOIC footprint for surface mount designs. Evaluate power dissipation constraints, as static current varies significantly based on input logic voltage levels, ranging from 1 mA to 7 mA.

Part Context

The AD8582 belongs to the AD8582 series of complete dual DACs manufactured by Analog Devices Inc. using CBCMOS process technology. This series includes variants such as the AD8582AN in a 24-pin Plastic DIP package. The device integrates 1270 transistors on a single chip to provide a cost-effective alternative to discrete DAC solutions.

Replacement Considerations

The AD8582AN serves as a package-compatible replacement within the same family, offering identical electrical performance in a 24-pin Plastic DIP format.