AD8804ARZ-REEL

Overview

The AD8804ARZ-REEL is a 12-channel, 8-bit digital-to-analog converter (DAC) from Analog Devices. It features individually programmable voltage outputs and a 3-wire SPI-compatible serial interface. The device operates on a single +3 V to +5 V supply with a typical supply current of 10 μA. Key specifications include a settling time of 600 ns, differential nonlinearity error of ±1/4 LSB, and integral nonlinearity error of ±1/2 LSB. It includes power shutdown functionality consuming less than 55 μW and allows independent zero-scale setting via the VREFL pin.

Feature Summary

• 12 independent 8-bit DAC channels with individually programmable outputs
• 3-Wire SPI compatible serial input interface for easy microcontroller integration
• Power shutdown mode reduces current consumption to <55 μW while maintaining latch settings
• Separate VREFL pin allows independent zero-scale voltage setting

Applications

• Automatic adjustment in video and audio equipment gain and offset control
• Replacement for mechanical trimmer potentiometers in new designs
• Geometric correction and automatic adjustment in CRT computer graphic displays
• Portable and battery-operated equipment requiring low power consumption

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity and ESD protection status upon receipt. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement orders.

Selection Notes

Select the AD8804ARZ-REEL when independent zero-scale adjustment is required via the VREFL pin. Ensure the application requires 12 channels of 8-bit resolution. Verify that the system operates within the +3 V to +5 V supply range and utilizes a 3-wire serial interface. Consider the SOIC-20 surface mount package for PCB layout compatibility.

Part Context

The AD8804ARZ-REEL belongs to the AD8802/AD8804 TrimDAC family. It shares core architecture with the AD8802 but adds the VREFL pin for flexible output range optimization. The REEL suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Replacement Considerations

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