MAX4939CTN+T

On-State Resistance (Max):	--
Base Part Number:	MAX4939
Supplier Device Package:	56-TQFN (11x5)
Package / Case:	56-WFQFN Exposed Pad
Operating Temperature:	0°C ~ 70°C (TA)
Features:	--
-3db Bandwidth:	65MHz
Voltage - Supply, Dual (V±):	±2.7 V ~ 5.5 V
Voltage - Supply, Single (V+):	1.62 V ~ 5.5 V
Series:	--
Number of Channels:	8
Switch Circuit:	--
Multiplexer/Demultiplexer Circuit:	--
Applications:	Ultrasound
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

MAX4939CTN+T, an analog switch from Maxim Integrated, is a highly versatile and low power device. It is ideal for applications requiring a high speed, low power or low number of circuits as it provides a fast, low logic level switching solution. MAX4939CTN+T is optimized for applications requiring low power, large circuit size, or high data rate. It has several modes including single, dual, and quad. The device offers several large and small port configurations, allowing it to be used in applications such as touch control circuits, interface circuitry, audio analog to digital conversion, and controlling and sensing circuits.

Applications and Benefits

The major application of MAX4939CTN+T is in audio analog to digital conversion. In this application, it can be used to switch analog signals to a Digital to Analog converter (DAC) within an audio/video setup. Additionally, the device is also suited for applications like switched capacitor filters, phase-locked loops, and other analog signal processing circuits. The low power and large circuit size, combined with low logic level switching makes the device ideal for interfacing and controlling various kinds of electronic devices and circuitry.The device is designed to have a low power profile, making it ideal for applications in which extended battery life or low power operation is important. In addition, the device has low operating temperature, allowing it to operate in temperature-constrained areas such as cellular applications. This combination of low power, low temperature, and high speed make the device well suited for a wide variety of applications.

Working Principle

The MAX4939CTN+T is a single-pole, double-throw switch. It has a three-terminal configuration, with the third terminal being the control terminal. The control voltage applied to the control terminal determines which contact is connected to the other two terminals. When the control voltage is low, the switch is open (i.e. no connection); when the control voltage is high, the switch is closed; and when the control voltage exists between low and high, the switch is in a state of intermediate transition known as the transition region.The device also has three logic states: logic 1, logic 0, and logic Z. Logic 1 is the active state of the switch and corresponds to a low control voltage. logic 0 is the inactive state of the switch and corresponds to a high control voltage, where the switch is closed. Logic Z is an intermediate state and corresponds to the control voltage existing between the low and high levels. In this state, the switch is permanently open.The device also has two modes of operation. The simultaneous mode (SIM) is used when both terminals are tri-state enabled, and the independent mode (IDT) is used when one or both terminals are not tri-state enabled. In the SIM mode, the control voltage on the control terminal determines which terminal is connected to the other two. In the IDT mode, the control voltage determines which terminal is connected to the other two terminals independently.

Conclusion

In conclusion, the MAX4939CTN+T is a highly versatile and low power device with many applications. It is well suited for audio analog to digital conversion, touch control circuits, interface circuitry, and other signal processing circuits. The device has several large and small port configurations, allowing it to be used in a wide range of applications. Additionally, the device is designed to have a low power profile and operate in a low temperature environment. Finally, it has two modes of operation – simultaneous and independent – which determine which terminal is connected to the other depending on the control voltage.

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