MAX4621ESE+

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The MAX4621ESE+ is an analog switch, multiplexer, and demultiplexer device specially designed for applications requiring high frequency response and low on-resistance. An integrated charge pump allows the user to power it with a single +2.7V to +5.5V power supply. The MAX4621ESE+ provides a robust 8-channel solution ideal for communication and data acquisition applications.

The external setup consists of a voltage divider to provide a -2.7V to +2.7V input common-mode voltage range between the single-ended input pin, which operates at TTL/CMOS compatible levels. The MAX4621ESE+ is normally used with a higher supply voltage than the input common-mode voltage. The output of the voltage divider should be connected to the common-mode voltage pin of the switch. The source voltage rating of the MAX4621ESE+ is -2.7V to +2.7V. The switch can be used as a voltage follower or op-amp input buffer by grounding the common-mode voltage pin.

The MAX4621ESE+ contains low-on-resistor CMOS switches that perform multiplexing, demultiplexing, level-shifting, and signal routing functions. It has high bandwidth (−3dB bandwidth of ≥100MHz) and low delay time (11ns typical). The device also offers excellent AC and DC performance for its size. The on-resistor of the MAX4621ESE+ is typicall 0.5Ω, with a maximum of 0.8Ω. It also has low off-leakage current, high ESD immunity, good thermal performance and low power consumption.

The MAX4621ESE+ is typically used to multiplex and demultiplex digital signals, reduce noise and determine signal integrity, in applications such as audio, video, data aquisition, network communications, and instrumentation. It features an 8:1 multiplexer and 1:8 demultiplexer with two digital control pins. The two digital control pins are used to select the channels of operation and the voltage common-mode range. It also has independent ITFET switches that allow the user to control the signal delay time and response.

In summary, the MAX4621ESE+ is an excellent example of an analog switch, multiplexer and demultiplexer. It provides high-frequency responses and low on-resistance, and its operating voltage range is -2.7V to +2.7V. It has high bandwidth, low delay time, and excellent AC and DC performance. It is used for multiplexing, demultiplexing, level-shifting, and signal routing functions, as well as audio, video, data aquisition, and instrumentation applications.

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