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Dual and octal digital-to-analogue converters

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article image MAX5590 digital-to-analogue converter.

MAXIM Integrated Products, represented by Arrow , has introduced the MAX5290-MAX5295 and MAX5590-MAX5595 family of dual and octal digital-to-analogue converters (DACs) available in eight, ten, and 12-bit resolutions.

These DACs utilise a fast output buffer that guarantees less than three microseconds full-scale settling time to 0.5LSB.

They provide excellent static accuracy at all resolutions: INL and DNL better than 1LSB; offset error guaranteed less than 5mV; and gain error less than 4LSB.

Two settling time modes are available to trade-off settling time for power consumption. The FAST mode decreases settling time to 3μsec (max). The SLOW mode reduces supply current to 3.2mA (max) for the MAX5590-MAX5595 and 800μA (max) for the MAX5290-MAX5295.

Good dc accuracy and low power make these DACs ideal for industrial applications including process control, automatic test equipment (ATE), and motion control.

The MAX5590-MAX5595 operate from a single 2.7V to 5.25V supply and the MAX5290-MAX5295 operate from a single 2.7V to 3.6V supply.

Each device accepts clock speeds up to 20MHz using a three-wire SPI-/QSPI-/MICROWIRE-compatible serial interface.

Two user-programmable digital I/O pins increase flexibility by adding advanced functions. Some of these functions include readback, daisy-chain capability, load DAC for asynchronously updating channels, and hardware shutdown. Each DAC is buffered with a fast-settling amplifier preconfigured in either force-sense or unity-gain.

The MAX5290-MAX5295 are available in 4mm x 4mm 16-pin QFN or 14-pin and 16-pin TSSOP packages. The MAX5590-MAX5595 are available in 24-pin and 28-pin TSSOP packages.

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