What this part is — nanoPower current sense in a SOT-23-5
The Maxim Integrated MAX9634TEUK+T is a single-channel current sense amplifier from the nanoPower series. It measures load current by sensing the voltage drop across an external shunt resistor, outputting a voltage proportional to that current. The part draws only 1.1 µA supply current, making it a fit for battery-powered or always-on monitoring where every microamp matters. Gain-bandwidth product is 125 kHz, adequate for DC rail monitoring, overcurrent detection, and low-bandwidth current loops. Input offset voltage is 100 µV, which sets the minimum detectable shunt voltage floor. The amplifier is housed in a SOT-23-5 package and operates over -40°C to 85°C.
Package and footprint — SOT-23-5
The MAX9634TEUK+T comes in a SOT-23-5 package. The supplier device package is SOT-23-5. Standard 5-pin footprint, no exposed pad. The -40°C to 85°C industrial temperature range covers most indoor and outdoor equipment not requiring extended automotive or military ratings.
Lifecycle — active, no EOL concern
The product status is Active per the manufacturer. The part is ROHS3 compliant.