DG419LDY

Voltage - Supply, Dual (V±):	±3 V ~ 6 V
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-71dB @ 1MHz
Current - Leakage (IS(off)) (Max):	1nA
Channel Capacitance (CS(off), CD(off)):	5pF
Charge Injection:	1pC
-3db Bandwidth:	--
Switch Time (Ton, Toff) (Max):	43ns, 31ns
Series:	--
Voltage - Supply, Single (V+):	2.7 V ~ 12 V
Channel-to-Channel Matching (ΔRon):	--
On-State Resistance (Max):	20 Ohm
Number of Circuits:	1
Multiplexer/Demultiplexer Circuit:	2:1
Switch Circuit:	SPDT
Part Status:	Obsolete
Packaging:	Tube

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Interface - Analog Switches, Multiplexers, Demultiplexers

The DG419LDY are analog multiplexers (MUXs) used in electronic systems to enable signals to obtain multiplexing capabilities.Multiplexers are often used in communications systems, where large streams of data must be split into multiple channels for transmission, or simplified for control purposes. They are also used in data acquisition systems to enable multiple signals to be monitored simultaneously. The DG419LDY is an 8-channel multiplexer that operates over relatively wide input voltage ranges. It is designed to switch analog signals in applications like audio, medical and industrial instrumentation.

Working Principle

A MUX is an electronic device that allows a user to select one input signal from multiple inputs and send it to a single output. It works by routing a single A/D converter input data line to one of its multiple multiplexed input channels. The user can select any one of the eight channels by setting the appropriate address lines. The DG419LDY is an 8-channel analog MUX that works with a maximum voltage range of up to 20V. It uses CMOS switch designs to reduce power consumption and increase reliability. The DG419LDY MUX uses two sets of control signals for selecting and enabling the analog channels. The two sets of control signals are: Address input (A0-A3) and Enable (EN). Each address has an associated logic level that when asserted （）, will select one of the eight analog channels. The Enable pin is used to control the MUX. When it is pulled high, the MUX is enabled and the selected channel is connected between the IN+ and IN- pins. Since multiplexers are used to switch signals between various sources, they are typically designed with low leakage current and excellent isolation characteristics. The DG419LDY also exhibits low leakage current and outstanding isolation. The maximum leakage current is 0.2nA at 20V and the isolation is greater than 10¹° of RMS voltage. Both the address signals (A0-A3) and the Enable (EN) pin have an input sink current of 3.5mA.

Applications of the DG419LDY MUX

The DG419LDY switch is commonly used in communications, data acquisition, and instrumentation systems. It is particularly useful for applications that require high speed and reliable signal switching. It can be used in applications like:

• High speed switching of digital, analog and RF signals
• Switching of multiple analog, digital, I2C and SPI signals
• Switching of multiple analog, digital, and audio signals
• Testing and measurement of digital and analog signals
• Medical and industrial instrumentation

The DG419LDY can be used in a variety of applications such as audio and video switching, medical treatment and patient monitoring, industrial and instrumentation control. It is a versatile and reliable switch, capable of performing precise switching operations and providing low power consumption. In addition, its wide voltage range capabilities make the DG419LDY an ideal choice for demanding applications.

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