Adopting integrated operational amplifier to produce regulated tube output protection circuit

ESD electrostatic protection tube 5V two-way 0201

Integrated Operational Amplifier (Amplified Operational Amplifier) ​​is a high-gain analog integrated circuit composed of multi-stage direct-coupled amplifier circuits. It has high gain (up to 60~180dB), large input resistance (several tens of kilo ohms to mega megaohms), low output resistance (tens of ohms), high common mode rejection ratio (60~170dB), offset and drift It is small, and it also has the characteristics that the output voltage is zero when the input voltage is zero. It is suitable for the input and output of positive and negative polarity signals. Analog integrated circuits are typically fabricated from a piece of P-type silicon wafer having a thickness of about 0.2 to 0.25 mm, which is a substrate for an integrated circuit. Circuits containing tens or more BJTs or FETs, resistors, and connecting leads can be made on the substrate. In addition to the +, - input and output terminals, the operational amplifier has +, - power supply terminal, external compensation circuit terminal, zero adjustment terminal, phase compensation terminal, common ground terminal and other additional terminals. Its closed-loop amplification factor depends on the external feedback resistor, which is very convenient for use.