ISL3176EIUZ

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The ISL3176EIUZ, a single-channel RS422/RS485 transceiver, is a high-speed, low-power integrated transceiver designed for use in a variety of applications. The ISL3176EIUZ integrates a 3.3V BTL (Bi-Directional Line Driver) and an LDO linear regulator capable of delivering up to 25mA at 3.3V. The ISL3176EIUZ is available in an 8-pin SOIC, an 8-pin MSOP and an 8-pin TSSOP package. Key features of the ISL3176EIUZ include:

• Spread Spectrum Clocking (SSC), allowing up to 25mV of common-mode noise
• Power down control, allowing the user to control when and how the RS422/RS485 transceiver is powered in order to ensure reliability and power savings when not in use
• Bi-directional data rate from 1 Mbps to15 Mbps and up to 4.5 Mbps in half duplex mode
• High common mode transceiver rejection at frequencies up to 10MHz
• Low power consumption: 90µA/channel at 3.3V
• Industry-standard ESD and surge protection
• Cross-talk immunity of up to 25dB

The ISL3176EIUZ is designed to integrate with a variety of protocols and standards-based microprocessors, allowing the user to easily achieve a wide range of applications. In particular, the ISL3176EIUZ is well suited for applications requiring high-speed communication across a single channel such as full duplex serial communication, automotive diagnostic systems, sensor networks, point of sale systems and industrial automation. Additional applications include low-speed full and half duplex applications such as modems and small systems. The ISL3176EIUZ is also ideal for systems operating at data rates from 1 Mbps to 15 Mbps.

In order to ensure reliable and robust operation, the ISL3176EIUZ provides several features designed to meet the demands of natural and mixed-signal applications. The integrated ESD/surge protection can withstand up to 20kV/m in contact mode and up to 2kV in air discharge mode for both the bus terminal pins and power supply pins. In addition, the device provides up to 25dB of cross-talk immunity, spreading the transmitted signal over a wide frequency, thereby reducing the chance of crosstalk. Finally, the ISL3176EIUZ offers a high common mode transceiver rejection of up to 10MHz, allowing the transmission of higher speed data with limited interference.

The ISL3176EIUZ is also designed with an integrated power down control, allowing the user to control when and how the transceiver is powered in order to ensure reliability and minimize power consumption when not in use. The power down control feature can be used in a variety of applications to reduce power consumption at select times and to maintain operational integrity for critical messaging or diagnostics.

In order to ensure compatibility with modern digital systems, the ISL3176EIUZ also features a Spread Spectrum Clocking (SSC) circuit. This feature allows the device to handle up to 25mV of common-mode noise without loss of data integrity, making it well suited for applications such as motor control and factory automation, where electric motor noise is a concern. The SSC also reduces radiated and conducted EMI, making it ideal for use in portable or battery powered systems.

In summary, the ISL3176EIUZ is a single-channel RS422/RS485 transceiver with several features designed to meet the demands of modern digital systems. The device offers a data rate of up to 15Mbps, SSC circuit to combat EMI and electric motor noise, integrated ESD/surge protection, and power down control. These features make the ISL3176EIUZ an ideal IC for a variety of applications such as full and half duplex serial communication, automotive diagnostic systems, sensor networks, point of sale systems and industrial automation.

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