4 MHz GBW, 1.8 V to 32 V supply — where this part fits
The LM7301IMX/NOPB is a single-channel general-purpose op-amp from Texas Instruments, offering a 4 MHz gain-bandwidth product and a 1.25 V/µs slew rate — a combination sized for signal conditioning in the audio band and low-frequency sensor front-ends where the gain-bandwidth product sets the closed-loop bandwidth ceiling. Its supply range spans 1.8 V to 32 V, so the same part can run from a single Li-ion cell or a 24 V industrial rail without a separate regulator. The rail-to-rail output stage swings within millivolts of both supply rails — useful when the ADC reference is the same supply and you want to avoid a gain-stage headroom penalty.
Parametric profile — what the numbers mean for a design
Input offset voltage is 40 µV typical; at this level the DC error from the op-amp itself is below the 1-mV threshold for most 12-bit systems with a 2.5 V reference, so no external nulling is needed for routine precision work. Input bias current is 103 nA typical — high enough that a 100-kΩ source resistor drops 10.3 mV across it, so a front-end with high-impedance sensors (10 MΩ or above) should budget for this offset or buffer with a JFET-input stage. Quiescent supply current is 720 µA per amplifier — low enough for battery-powered equipment that runs continuously, though a micropower op-amp in the 1-µA class would be a better fit for always-on sensor nodes.
Package, temperature grade, and sourcing posture
Housed in an 8-pin SOIC (0.154-inch body width, 3.90 mm), the LM7301IMX/NOPB is a surface-mount footprint that matches the industry-standard SO-8 land pattern — no board spin needed if the existing layout already uses that pad geometry. Rated for -40°C to +85°C, the part covers the industrial temperature band; it is not qualified to AEC-Q100, so an automotive-grade op-amp from the same family would be the correct choice for under-hood or cabin-temperature applications that require PPAP.