The BA4560RF-E2: The BA4560RF-: The ROHM BA4560RF- is a dual-channel general-purpose operational amplifier in an 8-SOP surface-mount package.
The 4 MHz gain-bandwidth product sets the usable closed-loop gain × frequency limit: at a gain of 10, the -3 dB bandwidth is about 400 kHz. For audio-band processing (20 Hz–20 kHz) or low-frequency sensor feedback loops, these numbers provide ample margin. If your design requires faster settling or higher-frequency amplification, the BA4560RF-'s bandwidth is the constraint to check against the maximum signal frequency and required closed-loop gain.
The 30 V maximum span covers ±15 V rails with headroom. The 3 mA quiescent supply current per amplifier is moderate — acceptable for multi-channel boards but not the lowest-power option for battery-operated gear.
Input offset and bias — error budget for precision circuits
Input offset voltage is rated at 500 µV maximum, and input bias current is 50 nA typical. For a non-inverting gain of 10, the offset at the output is 5 mV, which is acceptable for many general-purpose applications but may need trimming or auto-zero techniques for precision measurement below 1 mV. The 50 nA bias current matters when the source impedance is high — a 100 kΩ source resistor drops 5 mV from bias current alone. Stack these errors against your system accuracy budget before committing the BOM.
Package, mounting, and board-level fit
The BA4560RF- is supplied in an 8-SOIC (0.173", 4.40 mm width) package, with the supplier device package designated 8-SOP. It is a surface-mount part intended for reflow soldering. No exposed thermal pad; standard SOIC-8 footprint applies.
For BOM planning, this part presents no imminent obsolescence risk. ROHS3 compliance is confirmed, so no exemption expiry concerns for EU-market shipments.