Patent ID: 8532602

Claim:
A switching system, comprising: a switch having a switching element that includes one or more transistors including a switched transistor operable on and off in response to a switching signal coupled to a control terminal of the switched transistor, the switching element having a resistance, the switch configured to receive a first voltage signal and a second voltage signal and switch an output between the first voltage signal and the second voltage signal in response to the switching signal; and a linearizing circuit that includes a replica switching element circuit having one or more transistors corresponding to the transistors of the switching element in an arrangement corresponding to an arrangement of the transistors of the switching element, the linearizing circuit further including a reference resistance having a resistance value corresponding to the resistance of the switching element, the reference resistance having a first terminal coupled to a first terminal of the replica switching element circuit, the first terminal of the reference resistance and the first terminal of the replica switching element circuit coupled to the first voltage signal, the linearizing circuit further including an operational amplifier (op-amp) circuit, the op-amp circuit having a first input coupled to a second terminal of the reference resistance, a second input coupled to a second terminal of the replica switching element circuit, and an output coupled to a control terminal of the switched transistor and a corresponding control terminal of the replica switching element circuit, the second terminal of the reference resistance coupled to the second voltage signal via a first load resistance, the second terminal of the replica switching element circuit coupled to the second voltage signal via a second load resistance having a resistance value corresponding to a resistance value of the first load resistance.