The TLV5618ACDR: It delivers two independent analog outputs from a single chip, each settling to within 1 LSB in 10 µs — fast enough for setpoint control in industrial loops, programmable voltage references, or low-speed waveform generation, but not for audio-rate or high-frequency signal synthesis.
The 10 µs settling time to ±0.5 LSB (the DNL spec) sets a practical update ceiling of about 100 kSPS for full-scale steps. For smaller code changes the output settles faster, but if your application needs to update a control voltage every 5 µs, this part won't keep up — you'd be looking at a faster DAC family. On a repair bench, a slow or noisy output on a board with this DAC often traces back to a bad bypass cap on the reference input, not the DAC itself. The external reference input means the output full-scale range is set by whatever voltage you apply to the REF pin.
Supply rails and logic compatibility
The SPI interface is 3.3 V-logic compatible when the supply is 3.3 V; at 5 V supply the logic thresholds shift accordingly. No level shifters needed if the MCU runs on the same rail. The buffered voltage output means the DAC can drive a few mA directly into an ADC input or an op-amp buffer without an external amplifier for most applications.