主权项 |
1. Circuitry for processing signals, the circuitry comprising:
a first PMOS transistor with a source terminal coupled to a positive voltage supply; a drain terminal of the first PMOS transistor coupled to a source terminal of each of a second PMOS transistor and a third PMOS transistor; a fourth PMOS transistor with a source terminal coupled to the drain terminal of the second PMOS transistor; a fifth PMOS transistor with a source terminal coupled to the drain terminal of the third PMOS transistor; a first NMOS transistor with a drain terminal coupled to a drain terminal of the fourth PMOS transistor, to a gate terminal of the first NMOS transistor, to a drain terminal of a second NMOS transistor, and to a gate terminal of a third NMOS transistor; a fourth NMOS transistor with a drain terminal coupled to a drain terminal of the fifth PMOS transistor, to a gate terminal of the fourth NMOS transistor, and to a drain terminal of the third NMOS transistor, and to a gate terminal of the second NMOS transistor; a source terminal of each of the first NMOS transistor, the second NMOS transistor, the third NMOS transistor, the fourth NMOS transistor coupled to ground; and a cascode bias generator with an output terminal coupled to a gate terminal of the fourth PMOS transistor, to a gate terminal of the fifth PMOS transistor. |