| Resolution (Bits) | 16 |
| Number of DAC channels (#) | 1 |
| Interface type | SPI |
| Output type | Buffered Voltage |
| Settling time (μs) | 10 |
| Features | Low Power |
| 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: 8LSB
- Glitch Energy: 0.1 nV-s
- MicroPower Operation: 140 μA at 2.7 V
- Power-On Reset to Zero
- 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 Operation - Power-Down Capability
- Binary Input
- SYNC Interrupt Facility
- Drop-In Compatible With DAC85x1
and DAC8550 (2’s Complement Input)
The DAC8551 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 DAC8551 uses a versatile 3-wire serial interface that operates at clock rates to 30 MHz and is compatible with standard SPI?, QSPI?, Microwire?, and digital signal processor (DSP) interfaces.
The DAC8551 requires an external reference voltage to set its output range. The DAC8551 incorporates a power-on-reset circuit that ensures the DAC output powers up at 0 V and remains there until a valid write takes place to the device. The DAC8551 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 ideally suited for portable, battery-operated equipment. The power consumption is 0.38 mW at 2.7 V, reducing to less than 1 μW in power?down mode.
For additional flexibilty, see the DAC8550 (SLAS476), a 2?s complement-input counterpart to the DAC8551.