DG441CY+

Switch Time (Ton, Toff) (Max):	250ns, 120ns
Base Part Number:	DG441
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Crosstalk:	-100dB @ 1MHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	4pF, 4pF
Charge Injection:	5pC
-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):	4 Ohm (Max)
On-State Resistance (Max):	85 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Active
Packaging:	Tube

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DG441CY+ Application Field and Working Principle

Introduction

The DG441 are monolithic CMOS analog switch ICs containing four independent single pole, double throw (SPDT) switches. They are designed both as single and dual versions. As a single, they provide two SPSTs, one each from two common terminals, or as a dual 441, they provide four independent SPDTs from two common terminals. All switches exhibit break-before-make switching action and are typically used for analog and digital transactions requiring multiplexing and demultiplexing.

Application Field

The DG441CY+ is an analog switch IC which is used in a variety of applications including portable audio, video, and communication equipment, RF switching systems, medical instrumentation and instrumentation and control communication applications. The DG441CY+offer low charge injection, wide operating temperature range, low power consumption, and low-bounce, durable switches. The DG441CY+ is especially ideal for audio and video applications where the switching of signals must be fast and spurt free. The DG441CY+ can also be used in headsets, TV sets, hearing aids, amplifiers and other media devices as a PDDT switch.The ICs are also applicable in security systems, robotic applications, educational boards, auto-mation systems and other laboratory equipments.

Working Principle

Being an analog switch, the functionality of the DG441CY+ relies on its transitions between states. This is achieved by using the pins control pins, or what is called the “On-Off” pins. When in its “Off” state, the device allows no current to pass through it. When given a voltage on the control pin, the device transitions to its “On” state, and allows current to flow through.The DG441CY+ comes as a dual device, meaning it contains two SPDT switches that share two common terminals. The switches work independently of each other, meaning each switch will transition between its on and off state separately. This provides greater flexibility when the device is used in a multiplexing or demultiplexing setup, where each channel can be switched independently.The device also integrates an open drain output system. This allows the switches to connect to digital systems while any external pull-up resistor can be used to provide the bias current.

Conclusion

The DG441CY+ is a monolithic CMOS analog switch IC ideal for a wide range of applications. It can be used to switch between audio, video and communication devices, in addition to security systems and robotic applications. Its low charge injection, wide operating temperature range, low power consumption, and low-bounce, durable switches make the DG441CY+ an ideal choice for multiplexing and demultiplexing applications. It contains two SPDT switches that can be independently switched with its On-Off control pins and features open drain output systems.

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