LTC2851IS8#PBF

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LTC2851IS8#PBF is a universal RS485 / RS422/ RS232 transceiver from Linear Technology that is designed for long-distance network communications applications. The device is ideal for a variety of industrial, commercial and computer applications.

The LTC2851IS8#PBF has a robust error-checking and protection system that provides robust signal integrity over a wide temperature range. The transmitter output levels are adjustable to ensure signal compatibility with a wide range of signal conditions. It also includes an integrated termination resistor to protect signal integrity in high-impedance applications.

The LTC2851IS8#PBF has low power dissipation, ESD protection up to 15kV, and a built-in ground fault detector circuit. The device is packaged in an 8-pin SOIC, with an operating temperature range from -40C to +85C. It is compatible with most of the industrial communication such as RS-232, RS-422 and RS-485.

The LTC2851IS8#PBF operates at 3.3V, 5V or 12V supply voltage with a data rate of up to 2Mbps. It is designed for differential input/output operation with CMOS/TTL compatible logic levels and can be used to interface computers with intelligent sensors or industrial equipment over long distances. The receiver boasts a common-mode range from -7V to +12V and a typical differential input sensitivity of 90mV.

The device performs differential-to-single-ended conversion, provides 3-state TTL/CMOS outputs and features an adjustable input hysteresis level that allows for the accommodation of noisy conditions. It is also equipped with a slew-rate limited driver that minimizes EMI. The devices are designed to help reduce the amount of noise generated when communicating in noisy environments.

The working principle of the LTC2851IS8#PBF is simple. The Rx inputs are connected to the Diff A & B pins and are used to receive a differential input signal. The output pins are connected to the Tx outputs and are used to drive a differential output signal. The input hysteresis level is adjustable via the Hyst pin, allowing the user to tune the device to the input noise level. The slew-rate can also be adjusted. An integrated terminating resistor on the /TERM pin can be enabled via a TTL input.

The LTC2851IS8#PBF is an ideal solution for many applications that require accurate, cost-effective communication over long distances, particularly in noisy environments. The device has wide temperature range operating from -40C to 85C temperature. It is an ideal choice for applications requiring robust signal integrity, low power dissipation and ESD protection. It is suitable for a wide range of industrial and commercial applications such as serial communication, industrial automation, environmental control, test and measurement systems, and motor control.

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