Slew boost disable for an operational amplifier

A circuit, comprising:

• a first transistor configured to receive a first input voltage;
• a second transistor configured to receive a second input voltage;
• a third transistor coupled to the first transistor and to a first capacitor;
• a fourth transistor coupled to the second transistor and to a second capacitor;
• a fifth transistor coupled to the third and fourth transistors in an arrangement to form a first current mirror with the third transistor and a second current mirror with the fourth transistor;
• and
• a third capacitor coupled to a third current mirror, wherein the third capacitor is configured to receive a third voltage and the third current mirror is coupled to the fifth transistor.

A circuit, comprising:

• a differential input transistor pair configured to receive a first input voltage and a second input voltage;
• a current source coupled to the differential input transistor pair;
• first and second capacitors coupled to the differential input transistor pair;
• a first current mirror coupled to the first capacitor and to a first transistor of the differential input transistor pair;
• a second current mirror coupled to the second capacitor and to a second transistor of the differential input transistor pair;
• and
• a third capacitor coupled to a third current mirror, wherein the third capacitor is configured to receive a third voltage;
• wherein the third current mirror is coupled to the first and second current mirrors;
• and
• wherein a voltage on one of the first or second capacitors is configured to increase responsive to both:
• the first input voltage being more than a first threshold voltage different from the second input voltage;
• and
• the third voltage failing to change by more than a second threshold rate.