Patent ID: 8629709
Filing Date: 2014-01-14
Classification: H03K

Abstract:
1. A switch circuit device, comprising: a switch circuitry switching an electrical connection between first and second terminals between an on-state and an off-state in response to a set of control signals; and a driver circuitry generating said set of control signals, wherein said driver circuitry includes: a leakage current suppression circuit, which includes a low pass filter circuit disposed between said switch circuitry and said N-latch circuit to suppress an incoming of a signal from said switch circuitry to said N-latch circuit, wherein said switch circuitry includes: wherein said set of transistors each receive said set of control signals on a gate and a back-gate thereof and are switched between an on-state and an off-state in response to said set of control signals, wherein said set of control signals include: wherein said driver circuitry further includes an inverter circuit outputting selected one of first and second input voltages as said gate control signal, and wherein said N-latch circuit is connected to an output of said inverter circuit and outputs lower one of said gate control signal or a ground voltage as said back-gate control signal, and includes: a first transistor receiving said gate control signal on one of a source or drain thereof and receiving said ground voltage on a gate thereof; and a second transistor receiving said ground voltage on one of a source or drain thereof and receiving said gate-control signal on a gate thereof, the other of the source or drain of said second transistor being connected to said switch circuitry, wherein said low pass filter circuit includes: and wherein the drain and source may be exchanged in each of said first transistor, said second transistor, and said plurality of transistors.