MAX4605ESE

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Analog switches, multiplexers, and demultiplexers are essential components of digital and mixed-signal interfaces with integrated applications. The MAX4605ESE analog multiplexer/switch is a two-channel, 5V-tolerant CMOS switch array designed for use in low-voltage mixed-signal applications. The MAX4605ESE features the industry’s lowest on-resistance (2Ω max, typ) and channel-to-channel matched on-resistance of less than 0.1Ω (typ) between any two channels at all common operating voltages. This device can switch signals up to 5V, making it ideal for low-voltage applications such as cell phones that require maximum power savings and faster switching.

The MAX4605ESE is intended for use in single-supply applications and operates over a 1V to 5V supply range. The device draws a maximum of 5mA from the power supply, consuming only 0.59 mW of power. The device’s low-power drain and wide operating range make it ideal for use in battery-powered applications. The MAX4605ESE has a low input capacitance of 2 pF and a slightly asymmetric on-resistance profile (Ron low = 0.2Ω, Ron high = 0.3Ω) which improves signal conditioning. The MAX4605ESE also features a signal enhancer that improves signal characteristics when switching high-frequency signals.

In many applications, the MAX4605ESE is used to switch between two input signals. The logic level (Low/High) of the signal sent to control pins (VC and VD) determines which input signal is outputted. For example, when VC is Low and VD is High, signal A is output. When VC is High and VD is Low, signal B is output. When both are Low or both are High, neither signal is outputted. The MAX4605ESE also features a shutdown mode which allows the device to be disabled to save power. When VC and VD are both High, the SHDN pin is active and both outputs are tristate.

The MAX4605ESE is an excellent choice for applications that require low power combined with high performance. The wide power supply range, low on-resistance, CMOS logic inputs and industry-leading matched on-resistance make the MAX4605ESE an ideal solution for a number of mixed-signal applications. This device is commonly used in cell phones, digital cameras, flat panel displays, LCD TVs, and radios.

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