MAX339CPE+

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The MAX339CPE+ is an integrated analog switch array from Maxim Integrated. It provides a low-voltage, low-power alternative to mechanical wiring for analog signals. It features three 8-bit SPST switches, three 4-bit multiplexers, and a 4-bit 3-output demultiplexer. The devices are designed to incorporate precision switching and precise timing into portable and ultra-low power applications. With minimal power usage, low voltage operation, and an active supply current of 10uA, the MAX339CPE+ is a great choice for a variety of high-performance low-power applications.

Features

• Low-voltage operation: VDD = 2.4V to 5.5V
• High-quality switching: Low On-resistance 6000Ω typical @ 5V
• Low Supply Current: 10uA active
• Excellent Data Retention/Switch Coordination
• Selectable timing packages
• Flat Lead Type Package with no wire bonds
• Space Applications Compatible

Applications

• Analog/Mixed-Signal Switching
• Complex logic switching
• AD/DA switches
• Functional At-speed testing
• Electronic balancing
• Power MOSFET gate drive
• High-density telecom switches

Working Principle

The MAX339CPE+ is an integrated analog switch array. It operates in two basic modes. In the normal mode, switch elements SE1 to SE21 are enabled which allow analog signals to be transferred between two buses. They are controlled by the control lines K1 to K8. In the multiplexer mode, switches SE9 to SE21 are enabled and controlled by the control lines K1 to K3. The multiplexer mode can be used to select one of eight analog signals from a single bus and transfer them to the output bus.

The MAX339CPE+ uses a low power active mode which requires only 10uA of active current. In this mode, the control logic signal is interpreted as a logic high signal and provides a path for current to flow. In an inactive mode, no current is allowed to flow because the circuit is completely isolated from the control signal. This greatly improves power consumption efficiency in applications where signal transfers occur only sporadically.

The MAX339CPE+ also includes an internal power supply regulator which allows users to operate the device over a wide input voltage range from 2.4V to 5.5V. This makes it ideal for applications with both high and low voltage requirements.

In addition, the MAX339CPE+ features an integrated timer which allows users to set a delay between a control signal and the switch response. This helps reduce switch bounce and ensures reliable switch operation even in applications where high switching speeds are required.

Conclusion

The MAX339CPE+ is a versatile analog switch array that is ideal for a variety of low power and portable applications. With its low power usage and high-performance switching, it is an excellent choice for portable and ultra-low power applications. Its integrated power supply regulator and timer also make it ideal for applications requiring precise switching and timing.

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