AD8300AN

Overview

The AD8300AN is a complete 12-bit digital-to-analog converter (DAC) designed for single +3 V operation. It features a laser-trimmed internal reference providing a 2.0475 V full-scale output with 0.5 mV per bit resolution. The device operates on a supply voltage range of +2.7 V to +5.5 V and includes a rail-to-rail output amplifier capable of sourcing 5 mA. It utilizes a double-buffered three-wire serial interface compatible with DSPs and microcontrollers. Key specifications include a settling time of 6 ms at +5 V, low power dissipation of 3.6 mW, and an extended industrial temperature range from –40 °C to +85 °C.

Feature Summary

• Complete 12-bit DAC with no external components required
• Single +3 V operation with +2.7 V to +5.5 V supply range
• Double-buffered three-wire serial interface (SDI, CLK, LD)
• Rail-to-rail output amplifier with 5 mA source current capability

Applications

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

Procurement Notes

Verify the ordering suffix 'AN' corresponds to the 8-Lead Plastic DIP package when purchasing. Confirm that the specific revision matches the required timing parameters, as settling times vary between +3 V and +5 V operating conditions. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS input structures.

Selection Notes

Select the AD8300AN for applications requiring a low-cost, single-supply DAC with high accuracy. The 12-bit resolution and 0.5 mV/LSB step size suit precision control tasks. Consider the 6 ms settling time for speed requirements. Verify logic level compatibility if interfacing with 5 V systems while powered by 3 V, noting the Zener-protected inputs allow 5 V logic levels.

Part Context

The AD8300 is part of Analog Devices' family of complete, ready-to-use DACs. The 'AN' suffix specifically denotes the 8-Lead Plastic DIP (N-8) package variant. This component integrates a segmented R-2R ladder, bandgap reference, and output amplifier into a monolithic CBCMOS process, distinguishing it from discrete difference amplifiers or multi-channel converters.

Replacement Considerations

Public confirmed substitute part numbers only; omit otherwise.