ISL5123CBZ

Switch Time (Ton, Toff) (Max):	35ns, 30ns
Base Part Number:	ISL5123
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-105dB @ 1MHz
Current - Leakage (IS(off)) (Max):	100pA
Channel Capacitance (CS(off), CD(off)):	8pF, 8pF
Charge Injection:	5pC
-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):	20 Ohm
Number of Circuits:	1
Multiplexer/Demultiplexer Circuit:	2:1
Switch Circuit:	SPDT
Part Status:	Obsolete
Packaging:	Tube

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ISL5123CBZ Application Field and Working Principle

The ISL5123CBZ is an integrated circuit (IC) manufactured by Intersil Corporation, which is designed to provide fast, low on-resistance switches and multiplexers. It is classified as an interface device – analog switches, multiplexers, and demultiplexers. This article will provide an overview of this product and explain its working principle and application fields. The ISL5123CBZ is a monolithic device that consists of four independent single-pole switches and two independent two-pole switches. It is controlled with a low active logic, which means that a 0V logic level applied on the Gate input turns the corresponding switch on and 1V logic level applies on the Gate input turns the corresponding switch off. This circuit is well suited for consumer, industrial, and automotive applications because of its superior ESD performance as well as its low power consumption. The ISL5123CBZ has two main application fields: Switching and Multiplexing. In switching applications, the ISL5123CBZ can be used to connect or disconnect the signal path between a source and the load. On the other hand, multiplexing applications involve using the device to select one of many inputs to be forwarded to the output. This is typically done in applications where multiple inputs are connected to a single output to reduce the amount of physical connections in the circuit.The ISL5123CBZ offers robust protection against electrostatic discharge (ESD), making it ideal for use in harsh industrial environments. The device also contains two on-chip ESD protection diodes that protect both the AS and the Gate inputs from ESD-induced damage. Furthermore, its low power consumption makes it suitable for use in battery applications, and its low gate capacitance reduces gate input power consumption.The working principle of the ISL5123CBZ is fairly straightforward. When a logic LOW is applied to the Gate Input, the corresponding switch is activated and the source and drain terminals of that switch are connected, allowing current to flow through it. When the logic HIGH is applied, the corresponding switch is deactivated and the source and drain terminals of that switch are disconnected, inhibiting any current flow.The ISL5123CBZ is a versatile, cost-effective solution for most switching/multiplexing needs. It offers low on-resistance, ESD protection, and low power consumption, making it well-suited for use in a variety of consumer, industrial, and automotive applications.

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