8-bit DAC with I²C interface
The MAX517BCSA+ is an 8-bit digital-to-analog converter from Analog Devices with a voltage-buffered output, a single DAC channel, and an I²C-compatible serial interface. It settles to within 1 LSB in 6 µs typical, which suits control-loop set-point updates and waveform generation at audio-range frequencies where the update rate stays below roughly 160 kHz. The R-2R resistor-ladder architecture delivers monotonic performance without the glitch energy of a segmented design, and the integrated output buffer drives the load directly without an external op-amp.
Supply rails and linearity budget
Both the analog and digital supply rails are tied to a single 5 V supply, so the output swing is limited to the 0–5 V range minus the buffer's headroom — about 0.1 V from each rail at light load. Integral non-linearity is ±1.5 LSB maximum, and differential non-linearity is ±1 LSB maximum, guaranteeing monotonicity over the full 0–70 °C commercial temperature range. An external voltage reference sets the full-scale output, so the absolute accuracy tracks the reference's initial tolerance and drift rather than an internal bandgap.
Package and board integration
The tube packaging is the standard delivery format for this part; the SOIC-8 body is compatible with automated pick-and-place and reflow profiles per JEDEC MSL-1 (moisture sensitivity level not explicitly stated, but the commercial temperature grade and plastic package imply no special bake required for typical floor life).
It is ROHS3 compliant, meeting the exemption-free restriction levels for lead, mercury, and the other five substances under EU Directive 2011/65/EU.