MAX4742EKA+T

Switch Time (Ton, Toff) (Max):	24ns, 16ns
Base Part Number:	MAX4742
Supplier Device Package:	SOT-23-8
Package / Case:	SOT-23-8
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-110dB @ 1MHz
Current - Leakage (IS(off)) (Max):	1nA
Channel Capacitance (CS(off), CD(off)):	32pF, 32pF
Charge Injection:	28pC
-3db Bandwidth:	100MHz
Series:	--
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	1.6 V ~ 3.6 V
Channel-to-Channel Matching (ΔRon):	50 mOhm
On-State Resistance (Max):	800 mOhm
Number of Circuits:	2
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Active
Packaging:	Strip

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Introduction

The MAX4742EKA+T is a versatile analog switch from Maxim Integrated that is designed to provide high precision and low power consumption for a wide range of applications. With its unique combination of on-board buffered outputs, low-voltage logic, and low on-resistance, the MAX4742EKA+T is an ideal choice for customers who need low-power and high-precision analog switching.

Application Field

The MAX4742EKA+T is well suited for a wide variety of applications. It is ideally suited for low-power and high-precision analog switching applications such as audio switching, signal routing, multiplexing, and instrumentation. The low voltage, low on-resistance, and buffered outputs make it ideal for applications where high switching speeds, low power consumption, and high resolution are desired. The MAX4742EKA+T has also been designed to ensure low crosstalk, ensuring signal integrity in applications where noise or crosstalk may be a concern.

Working Principle

The MAX4742EKA+T is an analog switch that is based on bonded CMOS technology. It is built with a three-terminal p-channel open-drain MOSFET switch and a two-terminal p+ diffusion isolation. The MOSFET switch is controlled by a control signal from an on-board, low-power voltage reference circuit, a logic two-state voltage (ground or floating). This logic two-state voltage is used to control the MOSFET switch, allowing the switch to be used to connect or disconnect a signal from a variety of sources.When the voltage level of the control signal is floating, the p-channel MOSFET switch is enabled and the signal is routed through the MAX4742EKA+T. When the voltage level of the control signal is grounded, the MOSFET switch is disabled and the signal is disconnected from its source.For applications requiring high switching speeds, the on-board low-voltage logic is designed to operate at up to 20MHz, enabling fast switching of signals. The MAX4742EKA+T is also designed to have an on-resistance of 10Ω, ensuring low power consumption and high performance.

Conclusion

The MAX4742EKA+T is a versatile and low-power analog switch from Maxim Integrated. It features low on-resistance, low-voltage logic, and a buffered output, making it ideal for applications where low power consumption, high precision, and high switching speeds are desired. Additionally, it is well-suited for audio switching, signal routing, multiplexing, and instrumentation.

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