DG441AK

Voltage - Supply, Dual (V±):	±15V
Supplier Device Package:	16-CERDIP
Package / Case:	16-CDIP (0.300", 7.62mm)
Operating Temperature:	-55°C ~ 125°C (TA)
Crosstalk:	-100dB @ 1MHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	4pF, 4pF
Charge Injection:	-1pC
-3db Bandwidth:	--
Switch Time (Ton, Toff) (Max):	250ns, 120ns
Series:	--
Voltage - Supply, Single (V+):	12V
Channel-to-Channel Matching (ΔRon):	4 Ohm (Max)
On-State Resistance (Max):	85 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Obsolete
Packaging:	Tube

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Interface - Analog Switches, Multiplexers, Demultiplexers

Analog switches, multiplexers and demultiplexers are widely used in electronic systems to provide designers with the flexibility needed to route electrical signals from different sources to different destinations. One such electronic component is the DG441AK Quad CMOS Digital-to-Analog Multiplexer. This component is designed to provide an interface between digital and analog signals, allowing for precise signal routing and isolation.

Overview

The DG441AK is a four-channel CMOS multiplexer featuring four switching channels, each with a single digital input. The device is designed to connect logic-level signals to an analog load, providing accurate signal switching and control. Its single digital input allows the user to select a particular channel, and its single output provides the connection to the analog load. The channel selection is determined by the logic level of the digital input.The multiplexer has low power consumption with a maximum supply voltage of 3.3V and a current draw of 25µA. It is available in an 8-pin dual-in-line package and operates across the temperature range of 0°C to +70°C.

Applications

The DG441AK is used in a variety of applications. It is commonly used in filtering and signal processing, where it can be used to switch or select different signals or signals from different sources. It is also used in data acquisition and control systems, where its ability to switch signals accurately and quickly is often essential for the correct functioning of the system.The DG441AK can be used in a variety of audio applications, such as the selection of sound sources for audio mixers and sound processing. It is also suitable for switching motor control systems where its low power consumption and fast switching can be used to accurately control the motor’s speed or direction.

Working Principle

The DG441AK operates using CMOS logic, which is a type of logic technology that uses voltage levels to specify the logic state. The logic state is determined by the voltage level of the digital input, with a logic "high" indicating a switching channel is selected, and a logic "low" indicating the channel is not selected.When a logic "high" is applied to the digital input, the selected channel is connected to the output and the others are disconnected. This is done by the use of a series of MOSFET switches; when a switching channel is selected, the MOSFET switch corresponding to the selected channel is turned on and the other switches are turned off.The DG441AK is designed with very low on-resistance, so that when a channel is switched on, there is minimal voltage drop across the switches. This ensures that the signal is accurately connected and routed from the digital input to the analog output with minimal noise or distortion.In summary, the DG441AK is an ideal choice for applications requiring an interface between digital and analog signals. By providing precise signal routing and switching, the DG441AK can be used in filtering and signal processing, data acquisition and control systems, audio switching, and motor control. It operates using CMOS logic and is designed with low power consumption and low on-resistance, allowing for accurate and fast switching with minimal noise or distortion.

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