The recommended power-up sequence is to apply VDD first, followed by VREF, and then the digital interface (SCL and SDA). This ensures proper device operation and prevents potential latch-up conditions.
The DAC8551 has an output voltage range of 0 to VREF. To ensure accurate output voltage, the reference voltage (VREF) should be set to a value that is within the specified range (2.5V to 5.5V). Additionally, the output voltage should be buffered with an op-amp if it needs to drive a load.
The maximum clock frequency for the I2C interface of the DAC8551 is 400 kHz. Exceeding this frequency may result in communication errors or device malfunction.
The DAC8551 has a power-down mode that can be enabled by writing a specific code to the control register. In power-down mode, the device consumes minimal power and the output voltage is high-impedance. Refer to the datasheet for the specific code and implementation details.
The thermal shutdown temperature of the DAC8551 is typically 150°C. If the device temperature exceeds this value, it will shut down to prevent damage. The device will automatically restart when the temperature drops below 140°C.
DAC8551IADGKRG4 datasheet
by Texas Instruments
