The Renesas HA17904FPJ-E is a general-purpose dual operational amplifier in an 8-PSOP surface-mount package. It is designed for industrial signal-conditioning tasks where moderate speed and low power take priority over ultra-high bandwidth. Key parameters include a 0.2 V/µs slew rate, 800 µA total supply current for both amplifiers, and a supply range that spans up to 32 V — comfortable on a 24 V industrial rail with headroom.
A 0.2 V/µs slew rate limits the HA17904FPJ-E to signals below roughly 30 kHz full-scale output swing before slew-induced distortion appears. That is adequate for audio-frequency filtering, DC-level shifting, and low-speed transducer amplification, but it will not track fast pulse trains or high-frequency PWM feedback. The 30 nA input bias current and 3 mV input offset voltage are typical for a general-purpose bipolar stage — fine for 1% accuracy loops, not for microvolt-level precision.
If your BOM already uses this code, the supply channel is stable through standard distribution.