The recommended power-up sequence is to apply VDD first, followed by VREF, and then the digital inputs. This ensures that the internal circuitry is properly biased and configured before the digital inputs are applied.
To ensure accurate voltage output, it is essential to use a stable and low-noise voltage reference (VREF) and to decouple the power supply lines (VDD and VSS) with suitable capacitors. Additionally, the output voltage should be buffered with an op-amp if it needs to drive a load.
The DAC7563 can sink or source up to 5 mA of current. However, it is recommended to limit the output current to 3 mA or less to ensure accurate voltage output and to prevent overheating.
The DAC7563 can be interfaced with a microcontroller using a serial interface (SPI or I2C). The microcontroller sends the digital code to the DAC7563, which then converts it to an analog voltage output. The interface protocol and timing requirements are specified in the datasheet.
The settling time of the DAC7563 is typically around 10 μs, but it can vary depending on the output voltage range, load capacitance, and other factors. It is essential to ensure that the output has settled before taking a measurement or using the output voltage.
DAC7563SDGST datasheet
by Texas Instruments
