LTC Intros LTC2606 I2C Serial Interface DAC

Linear Technology Corp. (LTC, Milpitas, CA) announced a new 16-bit I2C serial interface DAC in a 3 mm x 3 mm DFN package that reduces the size of portable products. The LTC2606 is optimal for space-constrained applications, optimizing board layout. The LTC2606 provides an I2C interface with 27 user-selectable slave addresses, allowing many DACs on the same bus and minimizing address conflicts with other components.

The LTC2606 provides drive capability over its entire 2.7 V to 5.5 V supply voltage range. The DAC output can directly drive capacitive loads up to 1,000 pF or current loads up to 15 mA, and maintains good linearity to within millivolts of both supply rails. The low output offset (9 mV maximum) provides a starting code voltage close to 0 V. The LTC2606's low noise reduces the need for output filtering and its 0.1 Hz to 10 Hz noise is 15 µVp-p. The LTC2606's low 270 µA supply current and 1 µA maximum shutdown current are suitable for battery-powered applications.

The LTC2606 is one device in a family of compact DACs. The LTC2616/LTC2616-1 and LTC2626/LTC2626-1 are pin-compatible, 14-bit and 12-bit DACs, which allow multiple price/performance options for one design. Pricing starts at $2.84 each for the LTC2606 in 1,000-piece quantities.