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LTC2626 - 12-Bit Rail-to-Rail DACs with I²C Interface

The LTC®2606/LTC2616/LTC2626 are single 16-, 14- and 12-bit, 2.7V-to-5.5V rail-to-rail voltage output DACs in a 10-lead DFN package. They have built-in high performance 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 LTC2606/LTC2616/LTC2626 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 LTC2606/LTC2616/LTC2626 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 LTC2606-1/LTC2616-1/LTC2626-1 to midscale. The voltage outputs stay at midscale until a valid write and update take place.

Features Smallest Pin-Compatible Single DACs: LTC2606: 16 Bits LTC2616: 14 Bits LTC2626: 12 Bits Guaranteed 16-Bit Monotonic Over Temperature 27 Selectable Addresses 400kHz I2CTM Interface Wide 2.7V to 5.5V Supply Range Low Power Operation: 270µA at 3V Power Down to 1µA, Max High Rail-to-Rail Output Drive (±15mA, Min) Double-Buffered Data Latches Asynchronous DAC Update Pin LTC2606/LTC2616/LTC2626: Power-On Reset to Zero Scale LTC2606-1/LTC2616-1/LTC2626-1: Power-On Reset to Midscale Tiny (3mm × 3mm) 10-Lead DFN Package Typical Application

Applications Mobile Communications Process Control and Industrial Automation Instrumentation Automatic Test Equipment Packaging

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