DAC8218SPAG datasheet by Texas Instruments

DAC8218SPAG Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC8218SPAG?
  The recommended power-up sequence is to apply VDD first, followed by VREF, and then the digital inputs. This ensures proper device operation and prevents potential latch-up conditions.
• How do I handle the output voltage range of the DAC8218SPAG?
  The output voltage range of the DAC8218SPAG is dependent on the VREF input. To achieve the full 0-VREF output range, ensure that VREF is set to the desired maximum output voltage. For example, if VREF is 5V, the output voltage range will be 0-5V.
• What is the purpose of the SYNC pin on the DAC8218SPAG?
  The SYNC pin is used to synchronize the DAC's output with an external clock signal. This is useful in applications where multiple DACs need to be updated simultaneously, ensuring that the outputs are synchronized and minimizing glitches.
• How do I implement a bipolar output configuration using the DAC8218SPAG?
  To achieve a bipolar output configuration, connect the output of the DAC to an external op-amp circuit that provides a voltage offset and amplification. This allows the DAC to produce a bipolar output voltage range, such as -5V to +5V.
• What is the maximum update rate of the DAC8218SPAG?
  The maximum update rate of the DAC8218SPAG is 100 kSPS (kilosamples per second). However, this rate may be limited by the specific application, such as the settling time of the output amplifier or the digital interface.