QS3125QG8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Bus Switch
Circuit:	1 x 1:1
Independent Circuits:	4
Current - Output High, Low:	--
Voltage Supply Source:	Single Supply
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Supplier Device Package:	16-QSOP
Base Part Number:	3125

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Logic - Signal Switches, Multiplexers, DecodersLogic - Signal Switches, Multiplexers, Decoders are a class of integrated circuits that are designed to convert, amplify, or regulate logic signals or electrical signals. These types of circuits are found in many areas of electronics, including consumer electronics, computer architecture, communication systems, medical devices, and industrial machinery. The QS3125QG8 is a family of monolithic CMOS analog switches and multiplexers, ideal for signal switching and signal routing applications.The QS3125QG8 switch/mux is an integrated single chip CMOS circuit featuring 16 switches/mux, signal control, and external capacitance loading. It has switch control inputs, 2 differential voltage inputs, and a single output line. It is primarily used for signal multiplication and transmission in high speed systems. Its features include high speed (up to 1.5GHz), low power dissipation, low cross-talk, and increased reliability. The QS3125QG8 is designed for a wide range of applications such as switching audio, video and data signals, multiplexing and demultiplexing, and signal level shifting.The main feature of the QS3125QG8 is its low On State Resistance (RS). The RS of the QS3125QG8 is typically between 0.25 Ω and 0.45 Ω (measured at VDD = 3.3V and 5V) depending on the operating temperature (25°C - 125°C). This means that it typically consumes less power and doesn’t lose signal integrity when transmitting signals with high frequency. Moreover, the distortion introduced by the QS3125QG8 is insignificant when compared with the traditional single switch/mux.The QS3125QG8 also has an adjustable and loadable capacitance that helps to reduce crosstalk between different signals due to the signals traveling over the circuit. Crosstalk occurs when an undesired signal is induced in an adjacent line or wire due to electromagnetic coupling, also known as inductive or capacitive coupling. By using a loadable capacitor with an adjustable voltage, the crosstalk is reduced which helps to preserve signal integrity and noise.The QS3125QG8 also offers an internal protection circuit feature to prevent overload or undervoltage conditions. The QS3125QG8 is typically powered by a single +3V DC voltage source, but it can also operate under +5V and even with 1.8V and 2.5V. It is specified over the temperature range from -40°C to +125°C and it also features integrated electrostatic discharge (ESD) protection.In conclusion, the QS3125QG8 monolithic CMOS analog switches and multiplexers offer superior signal switching and signal routing performance with low On State Resistance, adjustable loadable capacitance, and an internal protection circuit. This makes the QS3125QG8 an ideal choice for a wide range of applications, from audio and video switching, to data and signal multiplexing, to level shifting.

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