DESCRIPTION
The LTC®1427-50 is a micropower, 10-Bit current output DAC with an output range of 0µA to 50µA. The DAC output is guaranteed monotonic and DNL is less than 0.9LSB under all operating conditions. Full-scale accuracy is ±2.5% over the commercial temperature range. The LTC1427-50 operates with power supply voltages from 2.7V to 5.5V and the DAC current source output can be biased from (VCC – 1.3V) to –15V.

FEATURES
■ Precision 50µA, ±1.5% Initial Full-Scale Output
   Current, ±2.5% Over Temperature
■ Wide Output Voltage DC Compliance: –15V to
   (VCC – 1.3V)
■ Wide Supply Range: 2.7V ≤ VCC ≤ 5.5V
■ Supply Current in Shutdown: 10µA Typ
■ Low Supply Current: 115µA Typ
■ Available in 8-Pin SO
■ SMBus Serial Interface
■ Four Selectable SMBus Addresses
■ DAC Powers Up at Zero or Midscale
■ DAC Contents Are Retained in Shutdown

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