DAC902E/2K5 datasheet by Texas Instruments

DAC902E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC902E/2K5?
  The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital inputs. This ensures proper device operation and prevents latch-up.
• How do I ensure accurate voltage output from the DAC902E/2K5?
  To ensure accurate voltage output, it is essential to use a stable and low-noise voltage reference, and to decouple the power supplies (VCC and AVCC) with suitable capacitors. Additionally, the output voltage should be buffered with an op-amp if it needs to drive a load.
• What is the maximum clock frequency that the DAC902E/2K5 can handle?
  The DAC902E/2K5 can handle clock frequencies up to 40 MHz. However, the maximum clock frequency may vary depending on the specific application and the quality of the clock signal.
• How do I handle the digital inputs to the DAC902E/2K5?
  The digital inputs to the DAC902E/2K5 should be driven by a low-impedance source, and the input signals should be properly terminated to prevent signal reflections. Additionally, the digital inputs should be synchronized with the clock signal to ensure proper data transfer.
• What is the thermal impedance of the DAC902E/2K5 package?
  The thermal impedance of the DAC902E/2K5 package is typically around 30°C/W. This value can be used to estimate the junction temperature of the device based on the power dissipation and ambient temperature.