DG412FEUE+T

Switch Time (Ton, Toff) (Max):	175ns, 145ns
Base Part Number:	DG412
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-105dB @ 1MHz
Current - Leakage (IS(off)) (Max):	250pA
Channel Capacitance (CS(off), CD(off)):	15pF, 47pF
Charge Injection:	5pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±4.5 V ~ 20 V
Voltage - Supply, Single (V+):	9 V ~ 36 V
Channel-to-Channel Matching (ΔRon):	200 mOhm
On-State Resistance (Max):	35 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NO
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Analog switches, multiplexers, and demultiplexers are interfaces used to connect components together in circuits. The DG412FEUE+T is a device of the same kind, and the application field and working principle of this device will be discussed in this article.The DG412FEUE+T is an analog switch available in both single and dual versions. The single version features one analog switch, while the dual version has two independent analog switches. It also offers a wide range of output polarity options (NMOS, PMOS, and NPN/PNP), and a current limiting feature that allows it to be used in battery-powered devices. The device is designed to be used in an open drain configuration, making it highly suitable for circuit interfaces that need to switch very high voltages and currents.In terms of its application field, the DG412FEUE+T is mainly used in voltage-controlled signal switching applications. These include multiplexers, demultiplexers, and signal-selectors. It can be used in circuits where analog switching is required, and it is also suitable for logic circuits requiring low-current-level signals. Additionally, the device is capable of handling signals of up to 10 MHz, making it suitable for high-speed application requirements.The working principle of the DG412FEUE+T is based on an FET (Field-Effect Transistor) switch structure. The device controls the operation of an FET by using a control pin that is connected to the switch gate. The voltage applied to the control pin will determine the operation of the device, as the voltage affects the conduction characteristics of the FET. Depending on the polarity of the switch, the FET will be NMOS or PMOS type.When the desired voltage is reached, the FET is then able to switch between the two terminals of the switching circuit. The device also features over-temperature protection, so that when the temperature of the device exceeds its safe limits, the device will be shut off automatically. This protects the device from overloads or other damage that can occur when the device is operating in adverse conditions.To sum up, the DG412FEUE+T is an analog switch with numerous application fields and working principles. It can be used to switch analog signals, process voltage-controlled signals, and provide over-temperature protection for the device. Its small form factor, wide operating range, and various output polarity options make it a great choice for circuit interfaces requiring small size and high performance.

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