F4558 PDF – Broadband Dual Operational Amplifier

An operational amplifier, often abbreviated as op-amp, is an electronic component that amplifies the difference between two input voltages and produces an output voltage that is much larger than either input. It is widely used in electronic circuits for a variety of applications such as signal amplification, filtering, oscillation, and mathematical operations. The op-amp is a versatile building block for many analog and digital circuits and has become an essential component in modern electronics.

Part Number: F4558

Function: Broadband dual operational amplifier

Package: DIP 8 Pin Type

Manufacturer: CHMC ( Huayue Microelectronics )

Images:F4558 pdf pinout


The F4558 includes two independent, high-gain, internal frequency-compensated dual operational amplifiers, which are suitable for single-supply use with a wide range of supply voltages, and are also suitable for dual-supply operating modes. Under the recommended operating conditions, the supply current is equal to The supply voltage is irrelevant. It is used in sense amplifiers, DC gain blocks and all other applications where op amps can be operated from a single supply. […]


1. Internal frequency compensation

2. High DC voltage gain (about 100dB)

3. unity gain bandwidth (about 1MHz)

4. Low input bias current

5. Low input offset voltage and offset current

6. Wide common-mode input voltage range, including ground

7. Wide differential mode input voltage range, equal to the power supply voltage range

8. Large output voltage swing (0 to Vcc-1.5V)

F4558 datasheet

F4558 PDF Datasheet