DAC108S085CIMT datasheet by Texas Instruments

DAC108S085CIMT Frequently Asked Questions (FAQs)

• What is the recommended output buffer configuration for optimal performance?
  According to TI's application notes, a 100-ohm resistor in series with a 10nF capacitor to GND is recommended for optimal output settling and noise reduction.
• How do I ensure accurate voltage output when using an external reference voltage?
  Make sure to decouple the external reference voltage with a 10uF capacitor to GND and use a low-noise, low-impedance reference source to minimize noise and drift.
• What is the maximum clock frequency for the SPI interface?
  The maximum clock frequency for the SPI interface is 50MHz, but it's recommended to operate at 20MHz or lower to ensure reliable data transfer and minimize noise.
• How do I handle power-on reset and ensure the DAC is in a known state?
  Use an external power-on reset circuit to hold the DAC in reset until the power supply is stable, and then release the reset to ensure the DAC is in a known state.
• What is the recommended layout and routing for the DAC output and reference voltage pins?
  Keep the DAC output and reference voltage pins away from noisy digital signals, use separate analog and digital ground planes, and route the output and reference voltage pins with short, direct traces to minimize noise and coupling.