DAC8581IPWR datasheet by Texas Instruments

DAC8581IPWR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC8581IPWR?
  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 DAC8581IPWR?
  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 output current of the DAC8581IPWR?
  The maximum output current of the DAC8581IPWR is 5 mA. Exceeding this current may cause the output voltage to droop or the device to overheat.
• How do I handle the DAC8581IPWR's digital inputs?
  The digital inputs of the DAC8581IPWR are CMOS-compatible and should be driven with a signal that meets the specified VIH and VIL levels. It is recommended to use a series resistor (e.g., 1 kΩ) to limit the input current and prevent damage from overvoltage or electrostatic discharge.
• What is the purpose of the CLR pin on the DAC8581IPWR?
  The CLR (Clear) pin is an active-low input that resets the DAC8581IPWR's output to zero scale (minimum output voltage) when pulled low. This pin can be used to synchronize multiple DACs or to implement a power-on reset.