ISL84543IB

Switch Time (Ton, Toff) (Max):	100ns, 75ns
Base Part Number:	ISL84543
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-90dB @ 1MHz
Current - Leakage (IS(off)) (Max):	100pA
Channel Capacitance (CS(off), CD(off)):	8pF, 8pF
Charge Injection:	1pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	2.7 V ~ 12 V
Channel-to-Channel Matching (ΔRon):	800 mOhm
On-State Resistance (Max):	60 Ohm
Number of Circuits:	2
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NO/NC
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The ISL84543IB is a versatile analog switch/multiplexer that can be used to switch, select and multiplex analog signals within a system. It is typically used in devices such as audio amplifiers, mixing consoles, receivers, and more. This article will discuss the ISL84543IB\'s application field and working principle in more detail.

ISL84543IB Applications

The ISL84543IB is an integrated circuit used to switch, select and multiplex analog signals within a system. It is available in a variety of packages, including SOIC, QFN, MSOP, and QFN-X-Y. The ISL84543IB features a wide operating voltage range of 1.8 V to 5.5 V and can handle up to +/-18V signal voltages. It also has a high isolation voltage rating of up to 60 V. The ISL84543IB is commonly used in signal processing, audio systems, and in audio amplifiers, mixing consoles and receivers. It can also be used in RF systems, including switches, multiplexers, and demultiplexers.

Working Principle of the ISL84543IB

The ISL84543IB is a CMOS analog switch/multiplexer. It works by using an internal signal to select between up to 4 different channels. This can be done manually, or with a control signal from an external input. When a channel is selected, the switch opens and allows the signal to pass. When a channel is not selected, the switch remains closed and the signal is blocked from passing. The switch is also bidirectional, meaning it can be used to switch between two different signals, or to switch within a signal.The ISL84543IB also has an internal shunt resistor, which helps to protect the switch and keep it from being overloaded. The switch also has an internal clamp diode, which limits the voltage across the switch and prevents it from being damaged.

Conclusion

The ISL84543IB is a versatile analog switch/multiplexer that can be used to switch, select, and multiplex analog signals within a system. It is commonly used in audio systems, RF systems, and audio amplifiers, mixing consoles, and receivers. It features a wide operating voltage range, high isolation voltage rating, and several built-in protection features. This article has discussed the application field and working principle of the ISL84543IB in more detail.

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