DAC900E/2K5 datasheet by Texas Instruments

DAC900E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC900E/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 DAC900E/2K5?
  To ensure accurate voltage output, it is essential to use a stable and low-noise voltage reference, and to decouple the analog and digital supplies properly. Additionally, the output voltage should be buffered with an op-amp to prevent loading effects.
• What is the maximum clock frequency that can be used with the DAC900E/2K5?
  The maximum clock frequency that can be used with the DAC900E/2K5 is 40 MHz. However, the actual clock frequency used may be limited by the specific application and the digital interface used.
• How do I handle the DAC900E/2K5's digital interface?
  The DAC900E/2K5 has a 16-bit parallel digital interface. To handle the interface, ensure that the digital inputs are properly terminated, and use a clock signal with a 50% duty cycle. Also, ensure that the digital inputs are synchronized with the clock signal.
• What is the thermal impedance of the DAC900E/2K5 package?
  The thermal impedance of the DAC900E/2K5 package is typically around 30°C/W. This value can be used to estimate the junction temperature of the device under different operating conditions.