ADG621C-PT7

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The ADG621C-PT7 is a part of the ADG621C-PT7 series of monolithic CMOS analog multiplexers (MUX) manufactured by Analog Devices, Inc. These devices are designed to provide analog switching capabilities for voltage, current and temperature applications. The ADG621C-PT7 features a single-pole, double-throw (SPDT) switch, with each switch offering a low on-resistance of typically 8.5Ω and a maximum voltage rating of 25V rms. It also features low to moderate power dissipation and a wide operating temperature range of -55°C to +125°C.

The ADG621C-PT7 is primarily used in applications that require the switching of analog signals, such as video or audio applications. It can be used to switch between multiple input signals, as well as switching between multiple output signals. It can also be used for voltage or current control in power management applications. The device can selectively route one of two input signals to one of two output signals. It is typically used in applications where the need for a high degree of accuracy is not critical, however, the device will also work well in applications that require accurate switching of analog signals.

The working principle of the ADG621C-PT7 is based on CMOS technology, allowing it to switch quickly and accurately. A digital input signal (a logic voltage or current) is used to control the on-state and off-state of the device. When the logic signal is low (close to ground), the device will be in a nonconducting or OFF state. When the logic signal is high (close to the supply voltage or close to +5V), the device will be in an conducting or ON state. This means that it can switch quickly from one state to another. The on-state resistance of the device is typically 8.5Ω, while the off-state resistance is typically higher than 200kΩ.

The switching characteristics of the ADG621C-PT7 are good, with fast response times and low power dissipations. The switching time is typically 1µs when switching from off to on, and a maximum of 3µs when switching from on to off. The device also has a low power dissipation of typically 340mW, when all channels are actively switching. The power consumption is further reduced when the device is in standby mode, and is typically less than 1mW.

The ADG621C-PT7 is a versatile device for use in a variety of analog switching applications. It can be used in signal routing, signal multiplexing, and power management applications. Its fast switching times and low power dissipations make it a good choice for high speed and low power applications, such as video and audio switching and switching between multiple input/output signals. It is also a good choice for applications requiring higher accuracy, such as computers or other equipment using calibration data.

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