| Resolution (Bits) | 16 |
| Number of DAC channels (#) | 1 |
| Interface type | SPI |
| Output type | Buffered Voltage |
| Settling time (μs) | 10 |
| Features | Low Power, Reset to Mid-Scale |
| Reference type | Ext |
| Architecture | String |
| Rating | Catalog |
| Output range (Max) (mA/V) | 5.5 |
| Output range (Min) (mA/V) | 0 |
| Operating temperature range (C) | -40 to 105 |
- Relative Accuracy: 8 LSB
- Glitch Energy: 0.1 nV-s
- MicroPower Operation: 140 μA at 2.7 V
- Power-On Reset to Midscale
- Power Supply: 2.7 V to 5.5 V
- 16-Bit Monotonic
- Settling Time: 10 μs to ±0.003% FSR
- Low-Power Serial Interface with Schmitt-Triggered Inputs
- On-Chip Output Buffer Amplifier with Rail-to-Rail Output Amplifier
- Power-Down Capability
- 2’s Complement Input
- SYNC Interrupt Facility
- Drop-In Compatible with DAC8531/01 and DAC8551 (Binary Input)
- Available in a Tiny MSOP-8 Package
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 30 MHz 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 200 nA at 5 V.
The low-power consumption of this device in normal operation makes it ideal for portable, battery-operated equipment. Power consumption is 0.38 mW at 2.7 V, reducing to less than 1 μW 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.