Voltage gain amplifier architecture for automotive radar

A circuit, comprising:

• a voltage gain amplifier comprising:
• a first fixed current source configured to source a first current, and a second fixed current source configured to source a second current, wherein the first and second currents are equal in magnitude;
• a third fixed current source configured to sink a third current, and a fourth fixed current source configured to sink a fourth current, wherein the third and fourth currents are equal in magnitude to one another and lesser in magnitude than the first and second currents;
• a first bipolar junction transistor having a collector coupled to the first fixed current source, an emitter coupled to the third fixed current source, and a base coupled to receive a first regulated differential input voltage;
• a first input amplifier having a first input receiving a first differential input signal, a second input coupled to the emitter of the first bipolar junction transistor, and an output generating the first regulated differential input voltage;
• a second bipolar junction transistor having a collector coupled to the second fixed current source, an emitter coupled to the fourth fixed current source, and a base coupled to receive a second regulated differential input voltage;
• and
• a second input amplifier having a first input receiving a second differential input signal, a second input coupled to the emitter of the second bipolar junction transistor, and an output generating the second regulated differential input voltage.