DESCRIPTION
The LTC®1662 is an ultralow power, fully buffered voltage output, dual 10-bit digital-to-analog converter (DAC).
Each DAC channel draws just 1.7µA (typ) total supplyplus-reference operating current, yet is capable of supplying DC output currents in excess of 1mA and reliably
driving capacitive loads of up to 1000pF. A programmable Sleep mode further reduces total operating current to 0.05µA.

FEATURES
■ Ultralow Power: 1.5µA (Typ) ICC per DAC Plus 0.05µA Sleep Mode for Extended Battery Life
■ Tiny: Two 10-Bit DACs in an 8-Lead MSOP— Half the Size of an SO-8
■ Wide 2.7V to 5.5V Supply Range
■ Double Buffered for Simultaneous DAC Updates
■ Rail-to-Rail Voltage Outputs Drive 1000pF
■ Reference Range Includes Supply for Ratiometric 0V-to-VCC Output
■ Reference Input Impedance Is Code-Independent (7.1MΩ Typ)—Eliminates External Buffers
■ 3-Wire Serial Interface with Schmitt Trigger Inputs
■ Differential Nonlinearity: ±0.75LSB Max

APPLICATIONS
■ Mobile Communications
■ Portable Battery-Powered Instruments
■ Remote or Inaccessible Adjustments
■ Digitally Controlled Amplifiers and Attenuators
■ Factory or Field Calibration