DG444BDJ

Switch Time (Ton, Toff) (Max):	300ns, 200ns
Base Part Number:	DG444
Supplier Device Package:	16-DIP
Package / Case:	16-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-95dB @ 100kHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	5pF, 5pF
Charge Injection:	1pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±15V
Voltage - Supply, Single (V+):	12V
Channel-to-Channel Matching (ΔRon):	--
On-State Resistance (Max):	80 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Obsolete
Packaging:	Tube

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DG444BDJ Application Field and Working PrincipleInterface - Analog Switches, Multiplexers, Demultiplexers have become more popular due to the increasing use of electronic devices in various industries. One specific type of device that is widely used in the field is the DG444BDJ. This device is a diode-terminal-based, 4-channel analog switch. It has four independent analog switching channels, a common input/output bus, and a control bus that enables fast and reliable performance.The primary application field of the DG444BDJ is switching signals in communication and signal processing systems, as well as for precision selection and analog-to-digital conversion tasks. The DG444BDJ has an integrated protection diodes that protect the gate source and drain against inverse voltages up to +/- 6V. It is designed to handle signals ranging from DC to 250kHz and is available in an 8-pin PDIP package.The working principle of the DG444BDJ is based on the P-type and N-type MOS transistors. It uses a control signal to operate, allowing it to perform switching operations quickly and reliably. There are four individual switch channels each consisting of an n-type source and a p-type drain. When the master control signal is high, the n-type source and p-type drain are connected. When the control signal is low, the transistor switches the connection off.For the user to control the DG444BDJ, a single control signal is applied to the control bus. This signal can be either active-high or active-low. When the signal is applied, the corresponding channel will be enabled or disabled depending on the level of the signal.Additionally, the DG444BDJ has two state management pins to control the output. The “high-state” pin when high, enables the output by connecting the drain and source of the selected channel. The “low-state” pin when low, forces channel turn-off which shuts down the channel output.In conclusion, the DG444BDJ is a 4-channel analog switch that can be used in various signal processing and communication systems. It is designed to handle signals ranging from DC to 250kHz and is available in an 8-pin PDIP package. The device uses a control signal to operate and has integrated protection diodes that protect the gate source and drain against inverse voltages up to +/- 6V. With its fast and reliable performance, the DG444BDJ is an ideal solution for applications that require precise signal switching.

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