| Resolution (Bits) | 16 |
| Number of DAC channels (#) | 1 |
| Interface type | SPI |
| Output type | Unbuffered Voltage |
| Settling time (μs) | 2000 |
| Reference type | Ext |
| Architecture | Delta-Sigma |
| Rating | Catalog |
| Output range (Max) (mA/V) | 2.8 |
| Output range (Min) (mA/V) | 0 |
| Operating temperature range (C) | -40 to 85 |
- 16-BIT MONOTONICITY GUARANTEED
OVER –40°C TO +85°C - LOW POWER: 1.2mW
- VOLTAGE OUTPUT
- SETTLING TIME: 2ms to 0.012%
- MAX LINEARITY ERROR: 30ppm
- ON-CHIP CALIBRATION
The DAC1221 is a Digital-to-Analog (D/A) converter offering 16-bit monotonic performance over the specified temperature range. 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.