AD8802ARZ-REEL

The AD8802ARZ-REEL is a 12-channel, 8-bit digital-to-analog converter (DAC) from Analog Devices, designed for DC voltage adjustment applications. It functions as a potentiometer divider, offering a TrimDAC® solution to replace mechanical trimmer functions in new designs.

This device is easily programmed via serial interface microcontroller ports. It features independent digitally-controllable voltage outputs and a midscale preset, making it suitable for potentiometer replacement where adjustments begin at a nominal value. This capability helps maximize resolution within a limited voltage control range.

The AD8802ARZ-REEL has its own DAC latch to maintain output state, updated from an internal serial-to-parallel shift register loaded through a standard 3-wire serial input digital interface. The serial data input word decodes the address for the DAC latches and the data to be loaded.

Key specifications include an 8-bit resolution, a 12-channel output, a sample rate of 1.7MSPS, and an operating voltage range of 2.7V to 5.5V. It operates within a temperature range of -40°C to 85°C and has a power dissipation of 0.055mW. The component is housed in a 20-pin SOIC package and is designed for surface mounting.