The DAC8822 dual, multiplying digital-to-analog converter (DAC) is designed to operate from a single 2.7V to 5.5V supply.
The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external, current-to-voltage (I/V) precision amplifier.
A RSTSEL pi allows system reset assertion (RS) to force all registers to zero code when RSTSEL = '0', or to midscale code when RSTSEL = '1'. Additionally, an internal power-on reset forces all registers to zero or midscale code at power-up, depending on the state of the RSTSEL pin.
A parallel interface offers high-speed communications. The DAC8822 is packaged in a space-saving TSSOP-38 package and has an industry-standard pinout. The device is specified from -40°C to +125°C.
For a 14-bit, pin-compatible version, see the DAC8805.
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| Resolution (Bits) | 16 |
| Number of DAC channels | 2 |
| Interface type | Parallel |
| Output type | Unbuffered Current |
| Settling time (µs) | 0.5 |
| Features | Reset to Mid-Scale |
| Reference type | Ext |
| Architecture | Multiplying DAC |
| Rating | Catalog |
| Output range (max) (mA/V) | 2 |
| Output range (min) (mA/V) | 0 |
| Sample/update rate (Msps) | 2 |
| Power consumption (typ) (mW) | 0.025 |
| Operating temperature range (°C) | -40 to 125 |
| TSSOP (DBT) | 38 | 62.08 mm² 9.7 x 6.4 |