ADG731BCPZ

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The ADG731BCPZ is a part of Analog Devices’ wide range of interface products. It is a four channel, bus expansion switch and an ideal single chip solution for popular bus expansion applications such as I2C, SMBus, SPI, and MilliBus. The ADG731BCPZ has been designed to provide low on-state resistance and low capacitance. Its low power consumption makes it well-suited for battery powered systems. Its integrated level shifter allows for a wide variety of signals to be connected, making it a versatile and cost effective solution for many applications.

Application Field

The ADG731BCPZ is a general purpose analog switch and multiplexer which can be used in a variety of applications. It is particularly suited for digital communication interfaces such as I2C, SMBus, SPI and MilliBus. It is also used in sample and hold circuits, analog signal switching, and multiplexing. It is used in consumer electronic devices such as cellular phones, PDAs and digital cameras. It can also be used in computers, data acquisition systems, robots, instrumentation, medical and industrial equipment.

Working Principle

The ADG731BCPZ contains a total of four independent analogue switches. These switches are controlled by the logic inputs, EN and T. The EN (Enable) pin controls switching for each channel individually. The T (Toggle) input controls the on/off state of the switches. When T is low, all switches are off and when T is high all switches are on. The ADG731BCPZ is a dual power supply device, with a voltage range of +2.0V to +5.5V. The switches themselves have an on-state resistance of 0.75Ω with a capacitance of 0.3pF. This low on-state resistance provides excellent signal integrity with minimal power dissipation.

The ADG731BCPZ also features an integrated level shifter. The input signal range is +2.0V (minimum) to +5.5V (maximum). The level shifter is designed to provide signal conditioning to ensure the signal can be transmitted accurately. This feature allows the signal to be transmitted across different logic families and voltage levels.

In addition, the ADG731BCPZ also has built-in overtemperature protection. This ensures that operation of the switch is not affected by an increase in temperature, allowing for higher reliability and longer operation time.

Overall, the ADG731BCPZ is a versatile and cost effective solution for many switch and multiplexer applications. Its low on-state resistance and wide signal range make it a great choice for low power systems. The integrated level shifter and overtemperature protection also make it a reliable solution for various digital communication interface applications.

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