DAC3164IRGC25 datasheet by Texas Instruments

DAC3164IRGC25 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC3164?
  The recommended power-up sequence is to power up the digital supply (VDD) first, followed by the analog supply (VREF). This ensures that the internal reference is stable before the DAC starts operating.
• How do I ensure accurate output voltage levels from the DAC3164?
  To ensure accurate output voltage levels, it is essential to use a low-noise, low-impedance reference voltage source, and to decouple the analog supply (VREF) with a 10uF capacitor. Additionally, the output voltage should be buffered with an op-amp if it needs to drive a load.
• What is the maximum output current that the DAC3164 can sink or source?
  The DAC3164 can sink or source up to 5mA of output current. However, it is recommended to limit the output current to 2mA or less to ensure accurate output voltage levels and to prevent overheating.
• How do I implement a bipolar output voltage range using the DAC3164?
  To implement a bipolar output voltage range, you can use an external op-amp to invert the output voltage of the DAC3164. Alternatively, you can use a voltage translator or a level shifter to shift the output voltage range to the desired level.
• What is the effect of temperature on the DAC3164's performance?
  The DAC3164's performance is affected by temperature, with the output voltage drift and integral nonlinearity (INL) increasing with temperature. However, the device is designed to operate over a wide temperature range (-40°C to 125°C), and the temperature coefficient is typically ±1ppm/°C.