An operational amplifier is an integrated circuit widely used in electronic circuits to amplify voltage signals. It features high gain, high input impedance, low output impedance, and is widely used in signal processing, filtering, amplification, and other fields. In the market, there are many popular operational amplifier models, and below we will introduce the top ten hot models.

2. AD823: AD823 is a high-performance operational amplifier introduced by ADI, with features like low noise, high gain, high bandwidth. It is suitable for precision instruments, medical devices, and other fields.

3. OPA2134: OPA2134 is a dual operational amplifier introduced by Texas Instruments, with features like low distortion, high bandwidth, low power consumption. It is suitable for audio amplification, filtering, and other applications.

4. LT1013: LT1013 is a dual operational amplifier introduced by Linear Technology, with features like low power consumption, high gain, low input bias current. It is suitable for portable electronic products, sensor interfaces, and other fields.

5. LM358: LM358 is a dual operational amplifier with features like low power consumption, high gain, low input bias current. It is widely used in power management, signal processing, and other fields.

6. AD8628: AD8628 is a low-power operational amplifier introduced by ADI, with features like low noise, high gain, high bandwidth. It is suitable for portable electronic products, sensor interfaces, and other fields.

7. OPA227: OPA227 is a high-performance operational amplifier introduced by Texas Instruments, with features like low distortion, high bandwidth, low power consumption. It is suitable for audio amplification, filtering, and other applications.

8. LT1490: LT1490 is a low-power operational amplifier introduced by Linear Technology, with features like low distortion, high bandwidth, low power consumption. It is suitable for portable electronic products, sensor interfaces, and other fields.

9. LM324: LM324 is a quad operational amplifier with features like low power consumption, high gain, low input bias current. It is widely used in power management, signal processing, and other fields.

10. AD8605: AD8605 is a low-power operational amplifier introduced by ADI, with features like low noise, high gain, high bandwidth. It is suitable for portable electronic products, sensor interfaces, and other fields.

In general, operational amplifiers play an important role in electronic circuits, and the top ten popular models introduced above are quite popular in the market. Different models are suitable for different application fields, and electronic engineers can choose the appropriate model for design based on specific requirements. We hope the above introduction is helpful to everyone.