What this op amp does on the board
The MAX4464EUK+T: It draws just 750 nA of supply current, which means it can run continuously in a sensor node or wearable without dominating the power budget — the amp itself uses less current than many microcontrollers in sleep mode. The 40 kHz gain-bandwidth product and 0.02 V/µs slew rate limit it to slow signals like temperature, pressure, or strain-gauge outputs; it is not built for audio or fast control loops.
Input characteristics for sensor front-ends
Input bias current is 200 pA typical, so a high-impedance source like a pH probe or a photodiode in photovoltaic mode does not see significant loading from the amplifier input. Input offset voltage is 500 µV maximum — for a gain of 100, that offset appears as 50 mV at the output, which may need a digital calibration step or an auto-zero architecture for precision DC measurement.
RoHS3 compliant, no exemptions that complicate EU or California market entry.