DS75176BTMX/NOPB

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The DS75176BTMX/NOPB is a differential 4-channel bus transceiver from Texas Instruments (TI). This device is part of a complete line of universal bus transceivers, which are suitable for all standard bus applications, such as UART, I2C, SMBus, and SPI. As an interface device, the DS75176BTMX/NOPB has multiple applications and a broad range of working principles.

Applications

The DS75176BTMX/NOPB is primarily used to interface between two TTL logic systems, isolating the two systems from each other. This isolation enables systems to remain functionally separate from each other. Because of its multiple channels, the DS75176BTMX/NOPB can be used to bridge the gap between systems that are incompatible due to voltage or language.

The DS75176BTMX/NOPB is also great for electrical protection applications. The device is ESD- and EMI-protected, and its integrated Common Mode Rejection (CMR) and Slew Rate Control keep signal integrity high. This enables the device to meet S → O (1-165 pF, 1000 Ω) and O → S (250 pF, 1000 Ω) standards, making it suitable for use in high-voltage applications.

The DS75176BTMX/NOPB is also used in power supply monitoring and current sourcing applications. It functions as a voltage regulator for both digital and analog signals, and it can be configured to operate as a current source or current sink. It can effectively monitor over-voltage and under-voltage conditions and automatically switch off if any of these conditions arise.

Working Principle

The DS75176BTMX/NOPB consists of four bidirectional channels, each with independent controls and outputs. The device has two receiver input pins, INA and INB, which can accept logic levels from 0V to 15V, while the driver output pins, OUTA and OUTB, provide logic levels from 0V to 15V. It has two control pins, CTRL1 and CTRL2, which can be used to select between the two receiver inputs, INA and INB, or disable the device. The device can also be configured to provide output isolation or open drain outputs on any of its four channels.

The DS75176BTMX/NOPB is designed for low power consumption and a wide operating temperature range. Its common-mode operation is designed for low-voltage applications, with a supply voltage range from 0V to 10V. The device has an enhanced slew rate control circuit, which reduces switching noise and eliminates ground bounce at the receiver side.

The DS75176BTMX/NOPB provides fast switching times between input and output channels, enabling high data throughput rates. The differential inputs also reduce radiated EMI, as well as susceptibility to noise, for applications in harsh EMI environments. Thanks to its integrated CMR, the DS75176BTMX/NOPB is able to reject common-mode noise, ensuring signal integrity.

Conclusion

The DS75176BTMX/NOPB is a robust, reliable, and versatile differential 4-channel bus transceiver. Its broad range of applications and diverse working principles make it an ideal choice for many interface applications. Thanks to its integrated CMR and low-power consumption design, the DS75176BTMX/NOPB is perfect for use in high-voltage and EMI-sensitive environments.

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