QS4A105QG

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Analog switches, multiplexers and demultiplexers are found in a wide variety of signal processing applications, with the most common being applications to manage, select and route analogue signals. The QS4A105QG is a field effect transistor (FET) based 4-port Analogue Switch which is rated from +10 to -5 Volts and is capable of operating at frequencies up to 10 GHz for RF signal routing applications.

The QS4A105QG uses an independent gate terminal to supply a control signal which controls the switching operation of the four ports. The switch incorporates two independent single pole, double throw (SPDT) analogue switches, each with their own control terminal. When the voltage of the control terminal is greater than the threshold voltage, the switch is in its ON state, and when the voltage of the control terminal is below the threshold voltage, the switch is in its OFF state.

Each switch is also capable of having a diode connected between both of the switch terminals as a protection feature which, when activated, splits the current from the ON state to the OFF state. This diode feature is beneficial in situations where a negative voltage or current occurs at the ON state, up to a maximum voltage of 0.4V for the entire switching cycle.

The QS4A105QG is often used as multiplexers and demultiplexers in wireless, telecommunications and data processing applications to manage, select and route analogue signals. As a multiplexer, it is used to switch a single input to any of two or more outputs. When used as a demultiplexer, it is used to switch a single output to any of two or more inputs. This allows multiple signals to be used in a variety of different applications, such as frequency hopping in wireless communication systems and crosstalk reduction in telecommunication systems.

The QS4A105QG is also used in RF signal routing applications as its high speed switching allows for frequencies up to 10 GHz. At these frequencies, it is capable of close to zero-crossing switching, which allows for quick and seamless switching of analogue signals without the need for an offset voltage. This eliminates the need for complicated circuitry and allows for faster switching between the four ports.

In summary, the QS4A105QG is a 4-port independent gate FET-based analogue switch with a diode protection feature which is used in a variety applications where analogue signals need to be routed and managed. It is used as a multiplexer and demultiplexer in wireless, telecommunication and data processing applications and as a high speed switch in RF signal routing applications up to 10 GHz.

The specific data is subject to PDF, and the above content is for reference