An operational amplifier circuit, comprising: a two-stage operational amplifier adapted to receive a first voltage input (V in1) and a second voltage input (V in2) comprising a first amplifier and a second amplifier electrically coupled in series, and a resistor in series with a capacitor electrically coupled in parallel between an input and an output of the second amplifier; a current booster circuit comprising a first current source, a second current source, a third current source, and a fourth current source; a first comparator having a non-inverting input, an inverting input, a first switching threshold voltage and an output, the non-inverting input electrically coupled to the first voltage input and the inverting input electrically coupled to the second voltage input; and a second comparator having a non-inverting input, an inverting input, a second switching threshold voltage and an output, the non-inverting input being electrically coupled to the second voltage input and the inverting input being electrically coupled to the first voltage input; wherein the output of the first comparator is adapted to control the first and third current source and the output of the second comparator is adapted to control the second, and fourth current source to supply additional current and to improve a slew rate of the operational amplifier circuit, wherein the first current source and the second current source are electrically coupled to the output of the two-stage operational amplifier, while the third current source and the fourth current source are electrically coupled to a power source of the first amplifier of the two-stage operational amplifier. a two-stage operational amplifier adapted to receive a first voltage input (V in1) and a second voltage input (V in2) comprising a first amplifier and a second amplifier electrically coupled in series, and a resistor in series with a capacitor electrically coupled in parallel between an input and an output of the second amplifier; a current booster circuit comprising a first current source, a second current source, a third current source, and a fourth current source; a first comparator having a non-inverting input, an inverting input, a first switching threshold voltage and an output, the non-inverting input electrically coupled to the first voltage input and the inverting input electrically coupled to the second voltage input; and a second comparator having a non-inverting input, an inverting input, a second switching threshold voltage and an output, the non-inverting input being electrically coupled to the second voltage input and the inverting input being electrically coupled to the first voltage input; wherein the output of the first comparator is adapted to control the first and third current source and the output of the second comparator is adapted to control the second, and fourth current source to supply additional current and to improve a slew rate of the operational amplifier circuit, wherein the first current source and the second current source are electrically coupled to the output of the two-stage operational amplifier, while the third current source and the fourth current source are electrically coupled to a power source of the first amplifier of the two-stage operational amplifier.