Description

The QS3125QG8 is a high-speed low resistance CMOS switch that consists of four individual switches. It is classified under the category of Signal Switches / Encoders & Decoders / Multiplexers. The device is designed to connect inputs to outputs without causing any propagation delay or generating additional ground bounce noise. The switches are enabled by individual Enables (OE). The QS3125QG8 is an ideal solution for signal and control switching. It does not add any noise, ground bounce, propagation delay or consume significant power to the system. The device can also be used for analog switching applications such as video.

Specifications and features

• Enhanced N channel FET with no inherent diode to Vcc
• Pin compatible with the 74’125 function
• Zero propagation delay, zero added ground bounce
• Undershoot clamp diodes on all switch and control inputs
• Available in QSOP and SOIC packages

Application Scenarios

• Hot-swapping, hot-docking
• Voltage translation (5V to 3.3V)
• Power conservation
• Capacitance reduction and isolation (mass storage, work stations)
• Logic replacement (data processing)
• Clock gating
• Bus isolation

Comparison

• The QS3125QG8 provides faster speed than conventional logic devices.
• The device does not add noise, ground bounce, propagation delay or consume significant power to the system.
• It can be used for analog switching applications such as video.
• The device is characterized for operation at -40°C to +85°C.

• The QS3125QG8 cannot be used in environments that require high capacitance or inductive loads.
• The device is not suitable for applications that require high precision.
• It may not be compatible with devices that require high voltage switching.