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.
| Resolution (Bits) |
| DAC: Channels |
| Architecture |
| Interface |
| Output Type |
| Output Range Min. (V or mA) |
| Output Range Max. (V or mA) |
| Settling Time (µs) |
| Reference: Type |
| Rating |
| Pin/Package |
| Approx. Price (US$) |
| Operating Temperature Range (C) |
| Special Features |
| DAC8550 |
|---|
| 16 |
| 1 |
| String |
| Serial SPI |
| Buffered Voltage |
| 0 |
| 5.5 |
| 10 |
| Ext |
| Catalog |
| 8VSSOP |
| 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 - PRECISION AMPLIFIER | OPERATIONAL AMPLIFIER |
| XTR111 | Precision Voltage-to-Current Converter/Transmitter | SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER - 4-20MA CONDITIONING | VOLTAGE-TO-CURRENT TRANSMITTER |