Amplifier and signal filter

An amplifier circuit with enhanced amplification linearity, comprising:

• a driver stage comprising a Complementary Feedback Pair (CFP) configured to enhance amplification linearity of the driver stage, and exposing at least an inverting input and a non-inverting input;
• wherein the inverting input is configured to couple with a first input filter network and with a first feedback network;
• and
• wherein the non-inverting input is configured to couple with a second input filter network and with a second feedback network;
• and
• a Voltage Amplifier Stage (VAS) coupled to the driver stage, comprising an enhanced cascode module with filters, and exposing at least one VAS output;
• wherein enhanced cascode module with filters comprises a top transistor and a Complementary Feedback Pair (CFP), wherein the CFP is used in place of a bottom transistor thereby enhancing amplification linearity of the enhanced cascode module, wherein the top transistor is biased by a reference voltage module, and wherein the bottom CFP comprises a filter to improve the stability of the amplifier;
• and
• wherein the at least one VAS output is connectable to one or more of a power transistors module, a zobel network and filters module, and a output signal interface;
• and
• wherein the amplifier circuit is configurable for use in one or more of a preamplifier or power amplifier circuit.