74HCT1G66GV-Q100H

Switch Time (Ton, Toff) (Max):	30ns, 44ns
Base Part Number:	74HCT1G66
Supplier Device Package:	5-TSOP
Package / Case:	SC-74A, SOT-753
Operating Temperature:	-40°C ~ 125°C (TA)
Crosstalk:	--
Current - Leakage (IS(off)) (Max):	1µA
Channel Capacitance (CS(off), CD(off)):	1.5pF
Charge Injection:	--
-3db Bandwidth:	200MHz
Series:	Automotive, AEC-Q100
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	4.5 V ~ 5.5 V
Channel-to-Channel Matching (ΔRon):	--
On-State Resistance (Max):	95 Ohm
Number of Circuits:	1
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NO
Part Status:	Active
Packaging:	Tape & Reel (TR)

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74HCT1G66GV-Q100H Application Field and Working Principle

Introduction

The 74HCT1G66GV-Q100H is a high performance, low power, single channel CMOS analog switch IC for use in interface applications. It is well-suited for interfacing any two types of signals from either digital or analog sources. The device features a wide range of features including pin-selectable OFF states, over-voltage tolerant inputs, and independent off-state output control. It is widely used in industrial, data acquisition, and test equipment.

Features

The 74HCT1G66GV-Q100H is an ultra-low-power, single channel switch designed to supply high performance and low power consumption in an optimised design. Features include:• Pin-selectable OFF states, with independent off-state output control• High impedance OFF state when power is switched off• Over-voltage tolerant inputs• Maximum propagation delay (tpd) of 10ns @ 5V• Low power consumption: 10W typical• Wide input voltage range: 0V to 7V• Low switching threshold: 0.4V• Low input current: 0.2µA• Over-temperature protection• Compatible with 3.3V TTL logic

Applications

The 74HCT1G66GV-Q100H is a versatile switch IC that can be used in a wide range of applications. Common applications include:• Digital switch circuits• Multiplexer and demultiplexer circuits• Audio signal routing• Video signal routing• On/off/reset logic• Level shifter circuits• Power switching• Motor control• Digital logic control• Sensor control• Bi-directional signal control• Voltmeter selection

Working Principle

The 74HCT1G66GV-Q100H is a single channel switch IC that is used to switch between two signals. It uses pin-selectable OFF states to control the OFF state of the switch. When power is switched off, it has a high impedance state, meaning no current flows through the switch.The switch also has over-voltage tolerant inputs that can accept signals up to 7V. The input signal to the switch is compared to the switching threshold (0.4V) and depending on the voltage difference, the output of the switch changes accordingly. The device can be used to switch between two digital signals, two analog signals, and even a digital and an analog signal.

Conclusion

The 74HCT1G66GV-Q100H is a versatile, high performance switch IC for use in interface applications. It features a wide variety of features to suit a range of applications, from digital and analog signal routing to power switching and motor control. By using pin-selectable OFF states and over-voltage tolerant inputs, it can be used to switch between two digital signals, two analog signals, or a digital and an analog signal.

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