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.
To ensure accurate voltage output, it is essential to use a high-precision voltage reference (VREF) and to decouple the VREF pin with a capacitor to reduce noise. Additionally, the output voltage should be buffered with an op-amp to prevent loading effects.
The maximum output current capability of the DAC70004IPWR is 10 mA per channel. Exceeding this limit may cause the output voltage to droop or the device to overheat.
The digital input signals should be properly terminated and driven by a low-impedance source to prevent signal reflections and ensure reliable data transfer. Additionally, the input signals should be synchronized with the clock signal to prevent metastability issues.
The DAC70004IPWR's performance is affected by temperature, with the output voltage and gain error varying with temperature. The device is specified to operate over a temperature range of -40°C to 125°C, and the user should consider these variations when designing their system.
DAC70004IPWR datasheet
by Texas Instruments
