An electronic amplifier circuit comprising an operational amplifier circuit, such as a two-stage operational amplifier circuit, in tandem with a operational transconductance amplifier.

The invention relates to an operational amplifier.

An operational amplifier circuit is provided.

An operational amplifier capable of attaining a high breakdown voltage.

Said first operational amplifier (101) is a fully differential operational amplifier provided with a common-mode feedback circuit.

A first force switch is coupled to an output of a first op amp and an associated sense switch is coupled to an inverting input of the first op amp.

A second force switch is coupled to an output of a second op amp and an associated sense switch is coupled to an inverting input of the second op amp.

The composite amplifier has performance far exceeding a conventional stand-alone op amp and is very cheap to construct.

When an op amp drives particular cells, sense switches generate multiple feedback paths to the driving op amp

The output of a first op amp (op amp 1') corresponds to one end of the differential signal.

A functional circuit such as an OP-amp has a differential output.

At the time of beginning, the firing angle is greatly delayed by received delayed pulses from an op-amp (operational amplifier).

The op-amp in the second feedback circuit can be configured as a non-inverting amplifier, an inverting amplifier, and/or an integrator circuit.

Another set circuit ramps the voltage using an op-amp loop and a source- follower configuration.

The circuit can include an instrumentation amplifier electrically coupled with a first feedback circuit including at least one resistor and a second feedback circuit including an op-amp.