8-bit DAC in a hand-solderable SC-70-6
The LTC2630CSC6-HZ8#TRMPBF is an 8-bit, single-channel, voltage-buffered DAC from Analog Devices in a tiny SC-70-6 package — the same footprint as a small-signal transistor, so you can hand-solder it onto a breakout board or a tight PCB without a microscope. It communicates over SPI, which means any microcontroller with a spare SPI port can drive it, and the buffered output can directly drive a few milliamps of load without an external op-amp.
Settling time and linearity for control loops
With a typical settling time of 3.7 µs, the output voltage reaches its final value within 0.5 LSB after a full-scale step — fast enough for closed-loop control in a benchtop power supply or a sensor calibration routine that updates at tens of kilohertz. Integral nonlinearity is ±0.05 LSB typical and ±0.5 LSB maximum, and differential nonlinearity is ±0.5 LSB maximum — guaranteed monotonic, so the output never skips a code when stepping through the 256 levels. The internal reference is derived from the 5V supply, so the output span is 0V to 5V — no external reference chip needed, but the supply must be clean because noise on the 5V rail couples directly into the DAC output.