Quad micropower op-amp with rail-to-rail output for industrial sensing
The OP493FP: It combines a 35 kHz gain-bandwidth product with a 12 V/µs slew rate — an unusual pairing for a micropart: the slew rate supports fast edge response in comparator or waveform-shaping roles, while the 14.5 µA total supply current across all four channels keeps the power budget tight in battery-powered or loop-powered designs. Rail-to-rail output swing maximizes dynamic range when running from a single 2 V to 36 V supply.
The 12 V/µs slew rate is roughly 13× faster than a typical 1 MHz general-purpose op-amp, which means this part can reproduce a 10 kHz sine wave with minimal distortion — useful for active filters or DAC output buffers where the LM324-class parts would slew-limit. The 14.5 µA total supply current is about 3.6 µA per amplifier, placing it in the micropower tier alongside parts like the AD8544, but the OP493FP delivers that current while maintaining a 35 kHz GBW. For a four-channel design, the power savings versus a standard quad op-amp drawing 1 mA per channel are substantial — the trade-off is input bias current at 20 nA and input offset at 275 µV, which are adequate for thermocouple or strain-gauge conditioning but not precision DC measurement.
The supplier device package is 14-PDIP. The RoHS status is listed as non-compliant, which is typical for older through-hole parts; verify your local exemption or plan for a lead-free alternative if the assembly process requires it.