MAX4501EXK+T

Switch Time (Ton, Toff) (Max):	75ns, 50ns
Base Part Number:	MAX4501
Supplier Device Package:	SC-70-5
Package / Case:	5-TSSOP, SC-70-5, SOT-353
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	--
Current - Leakage (IS(off)) (Max):	1nA
Channel Capacitance (CS(off), CD(off)):	3pF, 3pF
Charge Injection:	1pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	2 V ~ 12 V
Channel-to-Channel Matching (ΔRon):	--
On-State Resistance (Max):	250 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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Introduction

The MAX4501EXK+T is a low-noise, low-power, fixed-frequency,monolithic CMOS analog switch IC with basic control logic functions. This IC is designed to switch up to two full-scale signals with wide bandwidth, minimal switching transients, and no crossover distortion. It is suitable for applications such as audio, video, telecommunications, and general-purpose signal switching. This IC has a low switching noise and a 70V peak-to-peak fixed frequency operation. It contains a pair of differential analog switch channels but has a low power consumption of only 630nW.

Application Field

The MAX4501EXK+T is a practical choice for applications where low power consumption and low noise are key factors. It is particularly suitable for audio, video, and telecommunications switching applications where minimal switching transients, high bandwidth, and low crossover distortion are desired. Moreover, it performs well in general-purpose signal switching. It can be used in applications such as impedance matching, level shifting, and signal routing.

Working Principle

The operation of the MAX4501EXK+T analog switch is based on the basic control logic operation of CMOS switching technology. It utilizes a pair of differential MOSFETS (metal-oxide semiconductor field-effect transistors) to switch between A and B inputs. Each switch contains a series of differential MOSFETS wired in such a way that when a certain voltage is applied to the control gate, one of the MOSFETs turns off, while the other MOSFET turns on. The two MOSFETS are connected in series, so that when one turns off, the other turns on. This results in an effective switch between the two inputs with minimal switching transients and no crossover distortion.In addition, the MAX4501EXK+T features a 70V peak-to-peak fixed frequency operation. This ensures that the switch maintains a consistently low level of noise, even when switching high-amplitude signals. Moreover, the switch IC is designed to consume very little power, at only 630nW. This allows it to be used in applications where power consumption is a concern.

Conclusion

The MAX4501EXK+T is an ideal solution for audio, video, and telecommunications switching applications that require low noise and power consumption, while still providing high bandwidth and a low level of switching transients and no crossover distortion. The basic control logic operation of the switch IC makes it a practical choice for applications where these features are essential. The low power consumption and fixed frequency operation of the MAX4501EXK+T also make it suitable for applications where power consumption is a concern.

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