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LTC2609 - Quad 16-/14-/12-Bit Rail-to-Rail DACs with I²C Interface

The LTC2609/LTC2619/LTC2629 are quad 16-, 14- and 12- bit, 2.7V to 5.5V rail-to-rail voltage output DACs in a 16‑lead SSOP 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 LTC2609/LTC2619/LTC2629 operate in both the standard mode (clock rate of 100kHz) and the fast mode (clock rate of 400kHz).

The LTC2609/LTC2619/LTC2629 incorporate a power-on reset circuit. During power-up, the voltage outputs rise less than 10mV above zero-scale; after power-up, they stay at zero-scale until a valid write and update take place. The power-on reset circuit resets the LTC2609-1/LTC2619‑1/ LTC2629-1 to mid-scale. The voltage outputs stay at midscale until a valid write and update take place.

Features Smallest Pin-Compatible Quad DACs: LTC2609: 16 Bits LTC2619: 14 Bits LTC2629: 12 Bits Guaranteed Monotonic Over Temperature Separate Reference Inputs 27 Selectable Addresses 400kHz I2C™ Interface Wide 2.7V to 5.5V Supply Range Low Power Operation: 250μA per DAC at 3V Individual Channel Power Down to 1μA (Max) High Rail-to-Rail Output Drive (±15mA, Min) Ultralow Crosstalk Between DACs (5μV) LTC2609/LTC2619/LTC2629: Power-On Reset to Zero-Scale LTC2609-1/LTC2619-1/LTC2629-1: Power-On Reset to Mid-Scale Tiny 16-Lead Narrow SSOP Package Typical Application

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

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