MM74HC4051MX

Switch Time (Ton, Toff) (Max):	41ns, 32ns
Base Part Number:	74HC4051
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-50dB @ 1MHz
Current - Leakage (IS(off)) (Max):	100nA
Channel Capacitance (CS(off), CD(off)):	5pF, 90pF
Charge Injection:	--
-3db Bandwidth:	35MHz
Series:	--
Voltage - Supply, Dual (V±):	±2 V ~ 6 V
Voltage - Supply, Single (V+):	2 V ~ 6 V
Channel-to-Channel Matching (ΔRon):	15 Ohm
On-State Resistance (Max):	100 Ohm
Number of Circuits:	1
Multiplexer/Demultiplexer Circuit:	8:1
Switch Circuit:	--
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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IntroductionThe MM74HC4051MX is a single-chip integrated field effect transistor (FET) analog switch used for a variety of different applications. It is a multi-channel, analog switch, multiplexer (MUX) and demultiplexer (DEMUX) device that provides switching of two analog signals while providing isolation of both inputs and outputs. The MM74HC4051MX is commonly deployed in system designs where multiple analog signals must be toggled between two or more sources.ApplicationsThe analog switch, multiplexer (MUX) and demultiplexer (DEMUX) capabilities of the MM74HC4051MX make it suitable for a wide range of applications, including audio and telecom equipment, instrumentation and control systems. The integrated FET switch in the device allows multiple high-level analog signals to switch on and off between two or more sources securely and without resistance. This makes the MM74HC4051MX an ideal device for data acquisition systems, audio processing, automotive systems, medical instrumentation and consumer electronics applications.In data acquisition systems, for example, it can be used to switch analog signals between different sources depending on the user-defined conditions. In this type of application, it can be used to control the input or output signal paths of the system in order to accurately measure data.In audio applications, the MM74HC4051MX can be used to switch analog signals to drive an amplifier. By controlling the input signal to the amplifier, the MM74HC4051MX enables the user to adjust the gain of the amplifier and its output signal level, within a given frequency range.Working PrincipleThe MM74HC4051MX combines a FET analog switch with a multiplexer and demultiplexer. The multiplexer/demultiplexer is a device for connecting two signal paths together, allowing analog signals to travel from one to the other.The FET switch provides signal isolation between the multiplexer/demultiplexer and the signal sources. This reduces the amount of induced interference and distortion of the signal.The MM74HC4051MX works by allowing five different selection inputs (A0–A4) to choose the corresponding signal switch. Once the selection has been made, the FET switch is enabled, connecting the signal source to the desired output. This process is enabled by the FET switch, which is driven by the five selection inputs that are connected to both the ground and the enable pins on the device.ConclusionThe MM74HC4051MX is a single-chip integrated field effect transistor (FET) analog switch used for a variety of different applications. Its FET switch provides high-level analog signal switching between two or more sources without resistance, making it suitable for a range of high-fidelity audio applications, data acquisition systems, automotive systems and medical instrumentation. Through its integration of a FET switch, multiplexer and demultiplexer, the MM74HC4051MX allows users to control the input and output signal paths of the device with five selection inputs. This flexibility and reliability makes the MM74HC4051MX an ideal choice for a range of applications in audio and telecommunications, instrumentation and control systems, data acquisition systems, and consumer electronics.

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