The DAC8550 is a small, low-power, voltage output, 16-bit digital-to-analog converter (DAC). It is monotonic, provides good linearity, and minimizes undesired code-to-code transient voltages. The DAC8550 uses a versatile, 3-wire serial interface that operates at clock rates of up to 30MHz and is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces.
The DAC8550 requires an external reference voltage to set its output range. The DAC8550 incorporates a power-on reset circuit that ensures that the DAC output powers up at midscale and remains there until a valid write takes place to the device. The DAC8550 contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 200nA at 5V.
The low-power consumption of this device in normal operation makes it ideal for portable, battery-operated equipment. Power consumption is 0.38mW at 2.7V, reducing to less than 1µW in power-down mode.
The DAC8550 is available in an MSOP-8 package.
For additional flexibilty, see the DAC8551, a binary-coded counterpart to the DAC8550.
SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor.
All other trademarks are the property of their respective owners.
|Output Range Min. (V or mA)|
|Output Range Max. (V or mA)|
|Settling Time (µs)|
|Approx. Price (US$)|
|Operating Temperature Range (C)|
|2.60 | 1ku|
|-40 to 105|
|Reset to Mid-Scale|
|Sample & Buy|
|Part #||Name||Product Family||Comments|
|REF5040||Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE||VOLTAGE REFERENCE - SERIES VOLTAGE REFERENCE||SERIES VOLTAGE REFERENCE|
|OPA569||Power Op Amp, Output Signal Swings Within 200mV of Rails at 2A Output Current||OPERATIONAL AMPLIFIER - HIGH OUTPUT CURRENT AMPLIFIER||OPERATIONAL AMPLIFIER|
|XTR111||Precision Voltage-to-Current Converter/Transmitter||SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER - 4-20MA CONDITIONING||VOLTAGE-TO-CURRENT TRANSMITTER|