System for processing analog-type electrical signals with low noise driving device

A system for processing analog electrical signals and to be coupled to first and second analog supply potentials, the system comprising:

• a switch module having a control terminal and being switchable between a first state and a second state to thereby enable and inhibit, respectively, transfer of an analog electrical signal from a source module to a user module, based upon a driving electrical signal;
• a driving device configured to drive, based upon the driving electrical signal, the control terminal of the switch module, to cause the switch module to assume one of the first state and the second state, the driving device further allowing the switch module to carry out a first driving transition from the first state to the second state and a second driving transition from the second state to the first state;
• the driving device being configured to alternately couple the control terminal to a first reference potential during the first state and to a second reference potential during the second state;
• the driving device being further configured to couple the control terminal of the switch module to a third reference potential electrically distinct from the first and second analog supply potentials, during each time interval associated with at least one of the first and second driving transitions of the switch module.

A method of processing analog electrical signals comprising:

• using a switch module having a control terminal and being switchable between a first state and a second state to enable and inhibit, respectively, transfer of an analog electrical signal from a source module to a user module based upon a driving electrical signal;
• driving the control terminal of the switch module to cause the switch module to assume one of the first state and the second state based upon the driving electrical signal, using a driving device to thereby allow the switch module to carry out a first driving transition from the first state to the second state and a second driving transition from the second state to the first state;
• alternately coupling the control terminal to a first reference potential during the first state and to a second reference potential during the second state using the driving device;
• coupling the control terminal of the switch module to a third reference potential electrically distinct from the first and second analog supply potentials, during each time interval associated with at least one of the first and second driving transitions of the switch module, using the driving device.