Dual 12-bit DAC with integrated reference and I²C bus
The AD5697RBRUZ is a dual 12-bit, voltage-buffered digital-to-analog converter from the nanoDAC+® family, built around a string-DAC architecture that delivers monotonic performance without a code-dependent glitch impulse. Each of the two DAC channels settles to within 1 LSB in 7 µs typical, which sets the per-channel update ceiling for applications such as closed-loop setpoint control or waveform generation in industrial automation and instrumentation.
Accuracy and linearity — what the INL/DNL figures mean for the BOM
The AD5697RBRUZ specifies integral nonlinearity (INL) at ±0.12 LSB typical and ±1 LSB maximum, with differential nonlinearity (DNL) at ±1 LSB maximum — the typical INL is well below 1/4 LSB, so the part can be used in a 12-bit system without a calibration cycle for most applications, though the ±1 LSB max INL means the worst-case error across temperature and supply is one count at the 12-bit level. The string-DAC architecture guarantees monotonicity — the output never decreases for an increasing digital code — which is critical in servo loops and trim DAC positions where a non-monotonic step would cause the loop to hunt or latch.