Linear introduces the LTC2636 DACs

Linear Technology has brought out the LTC2636 range of 12-bit, 10-bit and eight-bit digital-to-analogue converters (DACs).

These DACs integrate a precision reference in tiny 4mm x 3mm DFN and MSOP packages.

The LTC2636's small size and internal reference is vital for a variety of industrial and communications applications.

Optical networking requires multiple DACs in a single compact package.

These DACs are suitable for driving optical attenuators or setting the current levels for laser diodes.

The LTC2636 integrates a 10ppm/C reference to help it save space.

The LTC2636 DACs are available in a number of ordering options to meet a range of applications.

Designers can select one of three resolution options and choose between a 2.5 or 4.096V full-scale range, making the LTC2636 a good fit for 3 or 5V systems.

The internal reference is bonded out, providing a convenient method to drive the reference inputs for other data converters in the system.

Alternatively, an external reference can be used if greater accuracy or a nonstandard voltage range is required.

Ordering option provides the choice between powering up the DACs at zero-scale or mid-scale, offering flexibility for designs that cannot be forced to ground when power is first applied.

Designers can choose between a 14-pin 4 x 3mm DFN package and an MSOP-16 package that includes a hardware load-DAC (LDAC) pin and a clear pin that asynchronously forces the DAC outputs to their respective reset state.

These DACs are ideal for automotive applications such as millimetre wave radar.

Both the DACs' specifications are guaranteed over the automotive (-40C to +125C) and the industrial (-40C to +85C) temperature ranges.

The LTC2636 offers excellent 12-bit DC performance of +/-2.5LSB (max) integral nonlinearity error and only +/-5mV offset error, making it a good fit for open-loop as well as closed-loop systems.

The LTC2636 offers < 2.4nVs crosstalk, ensuring that a voltage change on one DAC has minimal effect on the other DACs.

Operating from a single 2.7 to 5.5V supply, supply current is a low 100uA per DAC.

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