DESCRIPTION
The LTC®2607/LTC2617/LTC2627 are dual 16-, 14- and 12-bit, 2.7V to 5.5V rail-to-rail voltage output DACs in a 12-lead DFN package. They have built-in high perfor mance output buffers and are guaranteed monotonic.
These parts establish new board-density benchmarks for 16- and 14-bit DACs and advance performance standards for output drive and load regulation in single-supply, voltage-output DACs.
The parts use a 2-wire, I2C compatible serial interface. The LTC2607/LTC2617/LTC2627 operate in both the standard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz). An asynchronous DAC update pin (LDAC) is also included.
The LTC2607/LTC2617/LTC2627 incorporate a power-on reset circuit. During power-up, the voltage outputs rise less than 10mV above zero scale; and after power-up, they stay at zero scale until a valid write and update take place. The power-on reset circuit resets the LTC2607-1/LTC2617-1/LTC2627-1 to midscale. The voltage outputs stay at midscale until a valid write and update takes place.

FEATURES
■ Smallest Pin-Compatible Dual DACs:
   LTC2607: 16 Bits
   LTC2617: 14 Bits
   LTC2627: 12 Bits
■ Guaranteed Monotonic Over Temperature
■ 27 Selectable Addresses
■ 400kHz I2CTM Interface
■ Wide 2.7V to 5.5V Supply Range
■ Low Power Operation: 260µA per DAC at 3V
■ Power Down to 1µA, Max
■ High Rail-to-Rail Output Drive (±15mA, Min)
■ Ultralow Crosstalk (30µV)
■ Double-Buffered Data Latches
■ Asynchronous DAC Update Pin
■ LTC2607/LTC2617/LTC2627: Power-On Reset to Zero Scale
■ LTC2607-1/LTC2617-1/LTC2627-1: Power-On Reset to Midscale
■ Tiny (3mm × 4mm) 12-Lead DFN Package

APPLICATIONS
■ Mobile Communications
■ Process Control and Industrial Automation
■ Instrumentation
■ Automatic Test Equipment