Operational amplifier, driving interface, measurement and control device, driving circuit and driver

摘要

An operational amplifier, a driving interface, a measurement and control device, a driving circuit and a driver are provided. The operational amplifier is used as at least one of an input interface and output interface, and when the operational amplifier corresponds to one transistor (Q), an external circuit of the transistor further includes: a first port (Vdj), connected with a base (B) of the transistor (Q) through a first resistor (Rb); a second port (I/Oe), connected with an emitter E of the transistor (Q); a third port (I/Oc), connected with a collector (C) of the transistor (Q); and a fourth port (GND), connected with the emitter (E) of the transistor (Q) through a second resistor and used as a public port for signal input and signal output.