AOZ6238QT

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AOZ6238QT is a discrete bidirectional device that can be used as either an analog multiplexer or an analog switch. It is constructed of an enhancement-mode n-channel MOSFET with a zinc oxide-barrier-layer gate and is designed to perform as an efficient, high-frequency analog switch. The AOZ6238QT is ideal for analog switching applications, such as automatic gain control (AGC), low-frequency signal routing, or general power switch applications.

Application Field

The AOZ6238QT has a wide range of applications in the analog switching, multiplexing and demultiplexing category. It can be used to multiplex audio signals and analog VoIP signals which enables the chip to be used in audio processing implementations such as VoIP telephony systems. The flexibility and low power consumption of the AOZ6238QT also make it suitable for analog signal routing in test and measurement systems. It is also used in automotive and industrial control systems, as well as building automation systems.

Working Principle

The AOZ6238QT is based on a MOSFET device with a zinc oxide barrier layer gate and operates as a bidirectional switch with low distortion and low jitter. The device has an integrated logic level gate which can be switched between high and low levels with an input voltage. The gate voltage can be configured to either be externally set or the gate will latch to the last applied voltage. When external control voltage is used, the switch can be used as either a multiplexer or demultiplexer. The AOZ6238QT also has a low threshold voltage (Vth) to ensure reliable operation in low supply voltage operation.

When the gate voltage is held at a low level, the AOZ6238QT is open and the voltage difference between the two logic nodes is very low. As the gate voltage is increased to a high level, the device will close, reducing the resistance between the two logic nodes. This enables the device to act as an analog switch with low insertion loss and low crosstalk. The device also has an integrated over-voltage protection (OVP) feature which protects the device when large voltages are applied to the pins.

In conclusion, the AOZ6238QT is a highly efficient and cost-effective analog switch that is suitable for a wide range of analog signal multiplexing and switching applications. Its low power consumption and low distortion and crosstalk makes it an ideal solution for audio and VoIP signal routing and test and measurement systems. Its integrated OVP feature ensures reliable and safe operation even in harsh environments. Therefore the AOZ6238QT is an excellent choice for any analog switch, multiplexer and demultiplexer application.

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