MAX4989ETD+T

On-State Resistance (Max):	9 Ohm
Base Part Number:	MAX4989
Supplier Device Package:	14-TDFN-EP (3x3)
Package / Case:	14-WFDFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Features:	Bi-Directional, USB 2.0
-3db Bandwidth:	1GHz
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	2.7 V ~ 5.5 V
Series:	--
Number of Channels:	1
Switch Circuit:	--
Multiplexer/Demultiplexer Circuit:	2:4
Applications:	USB
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

The MAX4989ETD+T is an advanced, ultra-low on-resistance, low power analog switch, specifically designed for applications which require high performance in a small package. It is able to handle both differential and single-ended signals with very low on-resistance as well as very low on-capacitance, enabling it to be used in a wide range of applications, such as signal routing, test instruments, and telecommunication systems.

Application Field of MAX4989ETD+T

The MAX4989ETD+T is most commonly used in applications where high-speed switching and signal routing are required, and where a low-power and low-voltage switch is necessary. This switch is well suited for various types of applications including robotic systems, Industrial and Automotive networks, TSV buffer switches, and Terrestrial Femtocell Switches. The MAX4989ETD+T also offers significant improvements to signal integrity, making it suitable for use as a communication buffer switch, medical precision filter, and differential signal wafer level routing switch.

Structures of MAX4989ETD+T

The physical dimension of the MAX4989ETD+T is the same as any conventional 1.27mm x 1.14mm switch. The package is relatively small and can be easily integrated into a larger system. The chip consists of two separate switches, an input and an output. On the input side, there is a P-wire and an N-wire, and on the output side there is a P-wire, an N-wire, and a GND wire. The P and N connections are typically used for single-ended signal routing and the GND connection is usually used for differential signals.

Working Principle of MAX4989ETD+T

The MAX4989ETD+T is a static analog switch, which means that it only needs a short time to transition from one state to the other. The device is controlled by a digital input signal, which is typically controlled by a microcontroller or a logic device. When the digital input is in a high state, the chip will turn on the switch and connect the input to the output. When the digital input is in a low state, the switch will be turned off and the input will not be connected to the output.

Performance of MAX4989ETD+T

The MAX4989ETD+T has some impressive performance specifications. It has a very low on resistance of 0.3 ohms and low on-capacitance of 0.2pF when the switch is on. Additionally, it has very high isolation, with an isolation voltage of 800V and a CMRR of -95dB. Finally, it has an impressive signal-to-noise ratio (S/N).

Conclusion

The MAX4989ETD+T is an advanced analog switch that is capable of handling both differential and single-ended signals with very low on-resistance and very low on-capacitance. This makes it ideal for applications which require high performance in a small package, such as signal routing, test instruments, and telecommunication systems. Additionally, its impressive performance specifications, such as its low on resistance, low on-capacitance, high isolation voltage, CMRR, and high S/N, make it suitable for use in various applications including robotic systems, Industrial and Automotive networks, and more.

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