Active production — what it means for your BOM
The MAX5479EUD+: ROHS3 compliant, which means it meets the current EU restriction exemption set — no separate exemption expiry to track for the BOM.
Dual 100kΩ potentiometer — 256-tap resolution via I²C
Two independent 100kΩ potentiometer channels, each with 256 wiper tap positions — the 0.39% step size per tap gives fine-grained voltage division for trimming or level-setting in analog signal chains. The I²C interface handles both channels over a two-wire bus, with a selectable address so up to four devices share the same bus without address conflicts — useful in multi-channel calibration boards. Non-volatile memory retains the wiper position at power-off — no need to re-initialise the trim after a power cycle, which matters for set-and-forget adjustments like bias voltages or sensor offsets.
The 70ppm/°C typical temperature coefficient means the resistance drifts about 7Ω per °C at the 100kΩ end — negligible for most divider applications but worth budgeting in a precision reference. Wiper resistance is 325Ω typical — the series resistance between the wiper terminal and the internal tap point. At the low end of the divider this adds a small offset; factor it into the end-stop voltage calculation.
14-TSSOP package — board-fit notes
Housed in a 14-TSSOP with 0.173-inch (4.40mm) body width — the standard thin-shrink SOP footprint. Supplied in Tube — the standard antistatic shipping format for prototype and low-volume builds. For reel packaging check the alternate order code suffix.