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

Description

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.