DAC121C081CIMKX/NOPB datasheet by Texas Instruments

DAC121C081CIMKX/NOPB Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC121C081?
  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 settling time of the DAC121C081?
  The output voltage settling time of the DAC121C081 is typically around 10-15 μs. To ensure accurate readings, it's recommended to wait for at least 20-30 μs after updating the DAC register before taking a measurement.
• What is the effect of temperature on the DAC121C081's performance?
  The DAC121C081's performance is affected by temperature, with a typical temperature coefficient of ±1 ppm/°C for the output voltage. This means that the output voltage may drift by ±1 mV for every 1°C change in temperature.
• How do I minimize noise and interference when using the DAC121C081?
  To minimize noise and interference, use a low-noise power supply, keep digital and analog signals separate, use a ground plane, and consider using a shielded enclosure. Additionally, use a capacitor to decouple the VREF pin from the power supply.
• What is the maximum output current of the DAC121C081?
  The maximum output current of the DAC121C081 is 5 mA. Exceeding this current may cause the output voltage to droop or the device to overheat.