LTC2626 Datasheet

• Smallest Pin-Compatible Single DACs:
  • LTC2626: 12 Bits
• Guaranteed 16-Bit Monotonic Over Temperature
• 27 Selectable Addresses
• 400kHz I²C 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
• LTC2626: Power-On Reset to Zero Scale
• LTC2626-1: Power-On Reset to Midscale
• Tiny (3mm × 3mm) 10-Lead DFN Package

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment

The LTC2626 are single 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 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 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 LTC2626-1 to midscale. The voltage outputs stay at midscale until a valid write and update take place.