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单通道12/14/16位DAC芯片的5纳米理论参考SOT-23数据表ad5620/ad5640/AD5660
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The AD5620/AD5640/AD5660， members of the nanoDAC™ family of devices， are low power， single， 12-/14-/16-bit， buffered voltage-out DACs and are guaranteed monotonic by design. The AD5620/AD5640/AD5660-1 parts include an internal， 1.25 V， 5 ppm/°C reference， giving a full-scale output voltage range of 2.5 V. The AD5620/AD5640/AD5660-2-3 parts include an internal， 2.5 V， 5 ppm/°C reference， giving a full-scale output voltage range of 5 V. The reference associated with each part is available at the VREFOUT pin. The parts incorporate a power-on reset circuit to ensure that the DAC output powers up to 0 V （AD5620/AD5640/AD5660-1-2） or midscale （AD5620-3 and AD5660-3） and remains there until a valid write takes place. The parts contain a power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in power-down mode. The power consumption is 2.5 mW at 5 V， reducing to 1 µW in power-down mode. The AD5620/AD5640/AD5660 on-chip precision output amplifier allows rail-to-rail output swing to be achieved. For remote sensing applications， the output amplifier’s inverting input is available to the user. The AD5620/AD5640/AD5660 use a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI®， QSPI™， MICROWIRE™， and DSP interface standards.
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