DESCRIPTION
The LTC ®1428-50 is a micropower 8-bit current sink output D/A converter (DAC) with an output range of 0µA to 50µA. In 3.3V or 5V systems, the DAC IOUT pin can be biased from 2V to 10V. Supply current is only 130µA. Shutdown mode drops the supply current to 0.2µA.

FEATURES
■ Precision Full-Scale DAC Output Current at 25°C: 50µA ±3%
■ Wide Output Voltage DC Compliance: 2V to 10V
■ Wide Supply Range: 3V ≤ VCC ≤ 6.5V
■ Supply Current in Shutdown: 0.2µA
■ Low Supply Current: 130µA
■ Available in 8-Pin SO
■ Triple ModeTM Interface
    1. Standard 3-Wire Mode
    2. 1-Wire Pulse Mode Interface: Increment-Only
    3. 2-Wire Pulse Mode Interface: Increment/Decrement
■ DAC Value Read Back Capability in 3-Wire Mode
■ DAC Powers Up at Midrange
■ DAC Contents Are Retained in Shutdown

APPLICATIONS
■ LCD Contrast Control
■ Backlight Brightness Control
■ Power Supply Voltage Adjustment
■ Battery Charger Voltage/Current Adjustment
■ GaAs FET Bias Adjustment
■ Trimmer Pot Elimination