DG405CJ

Switch Time (Ton, Toff) (Max):	150ns, 100ns
Base Part Number:	DG405
Supplier Device Package:	16-PDIP
Package / Case:	16-DIP (0.300", 7.62mm)
Operating Temperature:	0°C ~ 70°C (TA)
Crosstalk:	-90dB @ 1MHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	12pF, 12pF
Charge Injection:	10pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±4.5 V ~ 20 V
Voltage - Supply, Single (V+):	10 V ~ 30 V
Channel-to-Channel Matching (ΔRon):	500 mOhm
On-State Resistance (Max):	45 Ohm
Number of Circuits:	2
Multiplexer/Demultiplexer Circuit:	2:1
Switch Circuit:	DPST - NO
Part Status:	Active
Packaging:	Tube

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DG405CJ Application Field and Working PrincipleThe DG405CJ is a low-power, low-voltage, CMOS-based, quad SPDT signal-switch device. It can be used in a wide range of signal-switching applications, including analog, digital and optoelectronic signal-switching solutions. It integrates two quad transmission gates, eight independent low-power analog switches, and six low-resistance passive resistors, into a single package. This combination allows for very low power usage and, in some applications, can eliminate the need for transistor switches or transistors.The device is designed to operate from a wide supply voltage range of 2.7 to 5.5 V, and has a very low quiescent current rating of just 1uA. The DG405CJ offers very low resistance between input and output, which is essential for low noise and distortion in audio applications. The on resistance of the DG405CJ is typically 20 ohms, and the off resistance is typically 0.01 ohms. With the onboard logic level translation, it can accept both TTL and CMOS inputs.The DG405CJ was designed primarily for use in applications requiring high production volumes and low cost, such as consumer electronics. It is frequently used in temperature sensing, automotive, lighting and home automation applications.At the heart of DG405CJ are the four independently switchable SPDT switches. The design allows each of the four switches to be individually programmed and controlled by a logic input. Each switch is enabled by applying a logic high to the corresponding enable pin. When enabled, the switch will either short the two channels or connect them according to how the output pin is set.The switch can be used for a variety of different signal routing applications. For example, it can be used to switch between two analog input signals on a temperature sensing circuit. It can also be used as a multiplexer, by switching between digital or analog signals from different sources, such as opto-couplers or remote controls. It can also be used as a demultiplexer, by routing the input signal to a single output. In addition to its use in signal routing, the DG405CJ can also be used in power switching applications. By using the switch\'s zero-resistance feature, it can be used in power control circuits to provide a low-resistance path between the power supply and the load. This reduces power dissipation, and also helps maintain a low-noise signal path when used in signal-switching applications.In terms of power dissipation, the DG405CJ is known for its low-power characteristics, as it only consumes 1uA when inactive, and can switch at 2V. This helps reduce power consumption in battery-powered applications, as well as in automotive and industrial systems where long battery life is key.Overall, the DG405CJ is a cost-effective off-the-shelf solution for a variety of signal-switching applications, from audio to power switching. Its low power consumption and cost-lowley feature set makes it an attractive option for designs requiring high production volumes and reliable performance.

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