What this 2.5 V reference brings to the board
The MAX6126BASA25: Fixed 2.5 V output, ±0.06% initial tolerance, 10 ppm/°C drift over -40°C to +125°C.
Output drive and quiescent draw
Rated for 10 mA output current, this reference can directly supply an ADC reference input, a DAC reference pin, and a small resistive divider without needing a separate buffer. The 725 µA quiescent supply current is modest — it is not the lowest-power reference on the market, but it is low enough that it will not dominate the power budget in a multi-rail instrument. If you are driving more than 10 mA or need to split the reference across several loads, plan on an external op-amp buffer.
Package and mounting
8-pin SOIC (0.154" body width, 3.90 mm wide), surface-mount only.
Lifecycle and sourcing note
RoHS non-compliant per the marking.
