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Vout DAC features I?C interface in 3-by-3mm package

Posted: 01 Feb 2005 ?? ?Print Version ?Bookmark and Share

Keywords:linear technology? dac? ltc2606?

Linear Technology Corp. said its 16bit I?C serial interface DAC in a 3-by-3mm DFN package can significantly reduce the size of portable products.

The compact size of the LTC2606 is optimal for space-constrained applications, optimizing board layout. The LTC2606 provides an I?C interface with 27 user-selectable slave addresses, allowing many DACs on the same bus and minimizing address conflicts with other components. The device's guaranteed monotonic performance is ideal for digital calibration, trim/adjust and level setting applications in a wide variety of products.

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

The LTC2606's asynchronous update pin allows the DAC update to be synchronized to a hardware signal and also allows simultaneous updates of multiple D/A converters in a system. The LTC2606 powers up at zero-scale while the LTC2606-1 powers up at midscale.

The LTC2606 is one device in a family of compact DACs. The LTC2616/LTC2616-1 and LTC2626/LTC2626-1 are pin-compatible 14bit and 12bit DACs, which allow multiple price/performance options for one design.

Pricing starts at $2.84 each for the LTC2606 in 1,000-piece quantities.

- Bettyann Liotta


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