Parametric fit for low-power signal conditioning
The MAX9613AXT+T is a single-channel general-purpose op-amp from Maxim Integrated, packaged in a 6-lead SC-70-6 (SOT-363) footprint. Its 2.8 MHz gain-bandwidth product and 1.3 V/µs slew rate suit moderate-speed signal conditioning — sensor amplification, filter buffers, or ADC driver stages where the signal bandwidth stays below a few hundred kilohertz. Supply current is 220 µA typical, and the rail-to-rail output stage swings within millivolts of the supply rails — useful in single-supply 3.3 V or 5 V systems where headroom is tight. The input offset voltage is 23 µV typical, keeping DC errors low in precision applications.
Input bias and output drive for sensor front-ends
Input bias current is 1 pA typical at 25°C — this is the key parameter for high-impedance sources like photodiode transimpedance amplifiers or pH probe buffers, where bias current flowing through the source resistance creates an offset voltage that can dominate the error budget. Output current capability is 275 mA per channel, which is unusually high for a general-purpose op-amp in this package class. It can drive heavy loads such as a low-impedance headphone or a small relay coil directly, though the thermal rise in the SC-70-6 must be checked against the ambient temperature.
Supply range and temperature grade
Operating from 1.7 V to 5.5 V single supply, the part covers the common 1.8 V, 3.3 V, and 5 V logic rails. The -40°C to +125°C industrial temperature range qualifies it for outdoor telecom, automotive cabin, and factory-floor enclosures where ambient temperatures exceed 85°C. Lifecycle status is Active per the manufacturer, and the part is ROHS3 compliant.