AD8108ASTZ

On-State Resistance (Max):	--
Base Part Number:	AD8108
Supplier Device Package:	80-LQFP (12x12)
Package / Case:	80-LQFP
Operating Temperature:	-40°C ~ 85°C (TA)
Features:	Buffered
-3db Bandwidth:	325MHz
Voltage - Supply, Dual (V±):	±4.5 V ~ 5.5 V
Voltage - Supply, Single (V+):	--
Series:	--
Number of Channels:	1
Switch Circuit:	--
Multiplexer/Demultiplexer Circuit:	8:8
Applications:	Video
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Introduction

AD8108ASTZ is an analog switch designed specifically for interface applications. It offers a wide variety of features and functions including its low current usage, high operating speed, low noise figure and high temperature range. The device is capable of switching signals up to 10 Gbps and can be used as an interface between the analog and digital world. In this article, the application field and the working principle of the AD8108ASTZ will be discussed in detail.

Application Fields

The AD8108ASTZ analog switch is suitable for a variety of applications, including audio and video switching, test and measurement systems and data communications applications. It is well suited for low noise and low power applications as it can handle signals up to 10 gigabits of data rate.The AD8108ASTZ is commonly used in audio and video switching applications, providing a high performance and reliable interface between the analog audio/video sources and the digital environment. The device offers low noise and crosstalk, allowing for a clear and crisp video signal. The switch also provides a low power consumption, making it suitable for battery-powered devices. The AD8108ASTZ is also well suited for test and measurement systems. It is able to provide low noise and high isolation, and offers a wide operating temperature range. This makes it an ideal choice for automated test systems and high accuracy test instruments.Finally, the switch is commonly used in data communication applications. It offers low power consumption, low noise and an excellent signal integrity to the host system. This makes the AD8108ASTZ an ideal choice for switches in all data networks.

Working Principle

The AD8108ASTZ analog switch consists of two MOSFETs. The two MOSFETs act as two series-connected switches that can be individually controlled. When one of the MOSFETs is turned on, the current path is switched on and the other MOSFET is off. When the current path is switched off, the switch is completely disconnected, providing maximum isolation and an extremely low crosstalk figure. The device also features an integrated low voltage logic input of 3V. This allows it to be easily driven by a variety of standard digital logic circuits. The switch is capable of providing a wide range of operation speeds, making it suitable for high-speed applications.

Conclusion

The AD8108ASTZ analog switch is a high performance, reliable interface for switching between the analog and digital world. It offers low noise and crosstalk, low power consumption, high speed operation, and a wide operating temperature range. These features make the switch suitable for a wide range of applications including audio and video switching, test and measurement systems, and data communication systems. The working principle of the device is based on two series-connected MOSFETs that can be individually controlled, providing low crosstalk and excellent signal integrity.

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