ADM3488ARZ

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The ADM3488ARZ is a part of the ADM34xx family of high speed, low power RS-485 transceivers. The device supports data rates up to 250 Kbps while consuming < 8mA of operating current. It features high immunity to ground potential differences and provides up to ±25 volts of common mode voltage. The IO voltage range is compatible with 3V to 5.5V logic levels. The device is designed to be used in harsh industrial and commercial applications, where the voltage levels and ESD protection requirements are stringent.

ADM3488ARZ is a bidirectional transceiver that provides full-duplex communication over a single twisted pair of cables. It is designed with a high level of transmitter drive and receiver sensitivity, allowing for long-distance, low-power communication. The device is equipped with two complementary outputs: A and B (Direction control), which are used to indicate the direction of the communication. When one output is high, the other is low, allowing the user to control the direction of the data flow. The device also features a fail-safe receiver, which will output logic levels in the absence of a valid signal and at power down. The device is also equipped with a slew rate control circuit, which can be used to prevent severe reflections of the data.

The ADM3488ARZ is particularly suitable for RS-485 applications including LAN, industrial automation, polling systems, process control and building automation.

The ADM3488ARZ uses a differential line driver and receiver along with a common mode noise rejection features. It features a combination of low-noise level operation, along with low power consumption, giving it an advantage over older devices. When the device is used in an industrial environment, the common mode noise rejection performance is greatly improved. The high impedance differential inputs provide a wide range of common mode noise rejection for up to ±25 V.

The device uses an edge-rates logic signal that is transferred from one transceiver to another. This signal is converted from the receiver\'s differential signal (TXD and RXD) to a logical signal for the receiver. The logical signals are typically in the form of NRZ (non-return to zero) pulses. The data pulses can be adjusted by controlling the slew rate control circuit. The slew rate control circuit adjusts the data emphasis and helps reduce the possibility of reflections and corruption of the data. It also helps reduce the amount of power consumption.

The ADM3488ARZ is an excellent device for providing low-power, long-distance RS-485 communication. With its immunity to ground potential differences, low power consumption and high speed, the device is suitable for a wide range of applications. Due to its high noise immunity, the device can also be used in harsh industrial environments.

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