Patent ID: 7135925

Claim:
A circuit comprising: a. first and second power-supply terminals; b. first and second cascode amplifiers, each cascode amplifier including an input terminal, a cascode terminal, a first current-handling terminal, and a second current-handling terminal; c. a first load coupled between the first current-handling terminal of the first cascode amplifier and the first power-supply terminal; d. a second load coupled between the first current-handling terminal of the second cascode amplifier and the first power-supply terminal; e. a first resistor coupled between the first current-handling terminal of the first cascode amplifier and the cascode terminals of the first and second cascode amplifiers; and f. a second resistor coupled between the first current-handling terminal of the second cascode amplifier and the cascode terminals of the first and second cascode amplifiers; g. wherein each of the first and second cascode amplifiers includes a plurality of transistors formed in common wells, and wherein the wells are electrically insulated from the first and second power-supply terminals.