The DAC8218 is a low-power, octal, 14-bit digital-to-analog converter (DAC).
The Texas Instruments DAC8218 is a low‑power, octal 14‑bit digital‑to‑analog converter designed for industrial test equipment, PLCs and other process‑control applications. It offers both bipolar (+2 V to +16.5 V) and unipolar (0 V to +33 V) output ranges, programmable gain (x4/x6), and a high‑speed SPI interface up to 50 MHz.
Electrical characteristics are provided for both dual‑supply (±16.5 V) and single‑supply (+32 V) configurations, with detailed specifications for output impedance, settling time, glitch performance, and temperature range (‑40 °C to +105 °C). The device is available in QFN‑48 and TQFP‑64 packages.
| Resolution | 14 Bits |
|---|---|
| Bipolar Output Range | +2 V to +16.5 V |
| Unipolar Output Range | 0 V to +33 V |
| Power Consumption (Bipolar) | 14.4 mW per channel |
| SPI Clock Rate | Up to 50 MHz |
| Programmable Gain | x4 or x6 |
| Operating Temperature Range | ‑40 °C to +105 °C |
| Package Options | QFN‑48 (7 × 7 mm), TQFP‑64 (10 × 10 mm) |
The DAC8218 supports an SPI clock rate of up to 50 MHz.
In bipolar mode the output can swing from +2 V to +16.5 V.
The unipolar output range is 0 V to +33 V.
The device operates from –40 °C up to +105 °C.