The Fairchild/ON Semiconductor KA258D is a general-purpose amplifier with a current input bias of 45nA and an input offset voltage of 2.9mV. It is a 2-circuit integrated circuit that comes in an 8-SOIC package. This amplifier operates at a temperature range of -25°C to 85°C and has a supply voltage range of 3 V to 32 V, ±1.5 V to 16 V. The operating supply current of the KA258D is 800μA, and the channel output current is 30mA. It is suitable for use in various electronic applications. The KA258D is obsolete(EOL) and has a medium popularity in the market.