The DAC1221 is a 16-bit low power digital-to-analog converter that offers 16-bit monotonic performance over the specified temperature range of -40°C to +85°C. It utilizes delta-sigma technology to achieve inherently linear performance in a small package at very low power. The output range is two times the external reference voltage. On-chip calibration circuitry dramatically reduces offset and gain errors. The DAC1221 features a synchronous serial interface. In single converter applications, the serial interface can be accomplished with just two wires, allowing low-cost isolation. For multiple converters, a CS signal allows for selection of the appropriate D/A converter. The DAC1221 has been designed for closed-loop control applications in the industrial process control market, and high resolution applications in the test and measurement market. It is also ideal for remote applications, battery-powered instruments, and isolated systems. The DAC1221 is available in a SSOP-16 package.
The DAC1221 is a precision, high dynamic range, self-calibrating 16-bit delta-sigma digital-to-analog converter. It utilizes delta-sigma technology to achieve inherently linear performance in a small package with very low power consumption. The device features a synchronous serial interface and on-chip calibration circuitry that dramatically reduces offset and gain errors.
| Resolution | 16 Bits |
|---|---|
| Power Consumption (Normal Mode) | 1.2 mW |
| Settling Time | 2ms to 0.012% |
| Max Linearity Error | 30ppm |
| Temperature Range | -40 °C to +85 °C |
| Output Voltage Range | 2 • VREF |
| Supply Voltage | 2.7 to 3.3 V |
The maximum linearity error is 30ppm.
The settling time to 0.012% is 2ms.