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12/14位的高带宽的乘法DAC串行接口ad5444/ad5446数据表
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The AD5444/AD54461 are CMOS 12-bit and 14-bit， current output， digital-to-analog converters （DACs）。 Operating from a single 2.5 V to 5.5 V power supply， these devices are suited for battery-powered and other applications. As a result of the CMOS submicron manufacturing process， these parts offer excellent 4-quadrant multiplication characteristics of up to 12 MHz. These DACs use a double-buffered， 3-wire serial interface that is compatible with SPI®， QSPI™， MICROWIRE™， and most DSP interface standards. On power-up， the internal shift register and latches are filled with 0s， and the DAC output is at zero scale. The applied external reference input voltage （VREF） determines the full-scale output current. These parts can handle ±10 V inputs on the reference， despite operating from a single-supply power supply of 2.5 V to 5.5 V. An integrated feedback resistor （RFB） provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier. The AD5444/AD5446 DACs are available in small 10-lead MSOP packages， which are pin-compatible with the AD5425/AD5426/AD5432/AD5443 family of DACs. The EV-AD5443/46/53SDZ board is available for evaluating DAC performance. For more information， see the UG-327 evaluation board user guide.
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