Amplifier circuit with temperature compensation

An automotive radar transceiver comprising an amplifier circuit, the amplifier circuit comprising:

• an amplifier having an amplifier input terminal and an amplifier output terminal;
• a temperature dependent variable impedance unit comprising:
• a first terminal, a second terminal and a variable impedance unit control terminal;
• a transistor comprising a conduction channel and a transistor control terminal, wherein the transistor control terminal is coupled to the variable impedance unit control terminal;
• a first resistor, wherein the first resistor is coupled in parallel with the conduction channel of the transistor;
• a capacitor coupled in series with the conduction channel of the transistor between the conduction channel and one of:
• (i) the first terminal;
• and (ii) the second terminal;
• and
• wherein:
• the first terminal is coupled to one of:
• (a) the amplifier input terminal and (b) the amplifier output terminal;
• the second terminal is for coupling to a reference node;
• and
• the variable impedance unit control terminal is configured to receive a control signal that is based on a measured temperature indicative of a temperature of the amplifier circuit and thereby provide a temperature dependent variable impedance for the amplifier circuit.