The MAX4036EXK is a single-supply, general-purpose op-amp from Maxim Integrated with a gain-bandwidth product of 4 kHz and a supply current of only 900 nA. That 4 kHz GBW tells you this is a DC-to-slow-signal part — think thermistor conditioning, battery-voltage monitoring, or photodiode amplification where the bandwidth of interest is a few hundred hertz at most. The 400 µV/µs slew rate reinforces the point: a 1 V step takes 2.5 ms to slew, so any fast edge will be heavily rounded. This is not a part for audio, switching-regulator feedback, or sensor outputs that need to track a 10 kHz ripple.
Package and footprint — SC-70-5
Housed in a 5-lead SC-70 (also known as SOT-353), the MAX4036EXK uses surface-mount packaging. The single-channel layout means a simple three-op-amp-per-board routing for multi-channel designs.
Temperature range and environment
The 900 nA quiescent current holds across temperature — no surprise thermal runaway at 85°C, but expect the usual doubling of input bias current near the hot end.