Circuit and method for dynamic current compensation

An operational amplifier capable of dynamically compensating for varying current needs, comprising:

• a first stage configured to receive two input signals;
• a second stage coupled to the first stage, wherein the second stage includes a first part with a first output of the operational amplifier, and a second part with a second output of the operational amplifier;
• a first current source configured to provide a first bias current for biasing the first part of the second stage, wherein the first bias current is adjusted based on a current consumption of the first part of the second stage;
• and
• a second current source configured to provide a second bias current for biasing the second part of the second stage, wherein the second bias current is adjusted based on a current consumption of the second part of the second stage, and the sum of the first bias current and the second bias current is substantially constant.

An integrated circuit configured to dynamically compensate for varying current needs, comprising:

• a first stage configured to receive two input signals;
• a second stage coupled to the first stage, wherein the second stage includes a first part with a first output of the operational amplifier, and a second part with a second output of the operational amplifier;
• a first set of transistors configured to form a first current source to provide a first bias current for biasing the first part of the second stage;
• and
• a second set of transistors configured to form a second current source to provide a second bias current for biasing the second part of the second stage, wherein the first current source is configured to increase the first bias current when the first output of the operational amplifier has a signal that is increasing, and the second current source is configured to increase the second bias current when the second output of the operational amplifier has a signal that is increasing, and wherein the sum of the first bias current and the second bias current is substantially constant.