GENERAL DESCRIPTION
The AD5821A is a single, 10-bit digital-to-analog converter (DAC) with output current sinking capability of 120 mA. It features an internal reference and operates from a single 2.7 V to 5.5 V supply. The DAC is controlled via a 2-wire, I2C®- compatible serial interface that operates at clock rates up to 400 kHz.

FEATURES
   Current sink: 120 mA
   Available in 3 × 3 array WLCSP package
   2-wire, (I2C-compatible) 1.8 V serial interface
   10-bit resolution
   Integrated current sense resistor
   Power supply range: 2.7 V to 5.5 V
   Guaranteed monotonic over all codes
   Power down to 0.5 μA typical
   Internal reference
   Ultralow noise preamplifier
   Power-down function
   Power-on reset