AD8300ARZ

Overview

The AD8300ARZ is a complete 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It operates from a single +3 V supply, with a guaranteed range of +2.7 V to +5.5 V. The device features a laser-trimmed full-scale output voltage of 2.0475 V and a resolution of 0.5 mV per bit. It utilizes a double-buffered three-wire serial interface compatible with DSPs and microcontrollers. Key electrical parameters include a maximum power dissipation of 6 mW at +5 V, an output current sourcing capability of 5 mA, and a settling time of 6 ms to within 0.2% of full scale. The component is housed in an 8-lead SOIC surface-mount package.

Feature Summary

• Complete 12-bit DAC with internal bandgap reference requiring no external components
• Single +3 V operation with a supply range of +2.7 V to +5.5 V
• Double-buffered three-wire serial interface (SDI, CLK, LD) with active low Chip Select
• Rail-to-rail output amplifier capable of sourcing 5 mA and sinking 2 mA

Applications

• Portable communications equipment
• Digitally controlled calibration systems
• Servo controls
• PC peripherals

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. The 'AR' designation indicates an 8-lead SOIC package with an industrial temperature range of –40 °C to +85 °C. Confirm that the required logic levels for SDI, CLK, CS, and LD pins are compatible with the driving system's voltage thresholds before procurement.

Selection Notes

Select this component when a low-power, single-supply DAC is required for battery-operated applications. Ensure the load impedance is greater than 400 Ω to maintain specified linearity and output drive capabilities. Verify that the system timing requirements for clock width and data setup/hold times fall within the specified limits for the target supply voltage.

Part Context

The AD8300 series includes variants such as the AD8300AN (Plastic DIP) and AD8300AR (SOIC). The AD8300ARZ specifically denotes the RoHS-compliant version of the 8-lead SOIC package. All variants share identical electrical specifications and functionality, differing only in physical packaging and compliance markings.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.