DAC121C085CIMMX/NOPB datasheet by Texas Instruments

DAC121C085CIMMX/NOPB Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the DAC121C085?
  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 ensure accurate voltage output from the DAC121C085?
  To ensure accurate voltage output, it is essential to use a stable and low-noise voltage reference (VREF) and to decouple the power supply lines (VDD) 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 DAC121C085?
  The maximum output current of the DAC121C085 is 5mA. Exceeding this current may cause damage to the device or affect its accuracy.
• How do I handle the DAC121C085's digital inputs?
  The digital inputs of the DAC121C085 are CMOS-compatible and should be driven with a logic level that is compatible with the device's supply voltage (VDD). It is recommended to use a buffer or a logic gate to drive the inputs if they are not driven directly from a microcontroller or other logic device.
• What is the thermal impedance of the DAC121C085 package?
  The thermal impedance of the DAC121C085 package (MSOP-8) is typically around 45°C/W. This value can be used to estimate the junction temperature of the device under different operating conditions.