SN75ALS197NSR

The SN75ALS197NSR from Texas Instruments is a monolithic, quadruple differential line receiver utilizing advanced low-power Schottky technology. This device is optimized for balanced, multipoint bus transmission on long bus lines in noisy environments, meeting ITU recommendations V.10, V.11, X.26, and X.27.

Key electrical characteristics include an operating temperature range of 0°C to 70°C, an input voltage range of 4.75V to 5.25V, and a data rate capability of up to 20 Mbaud. It features a common-mode input voltage range of -7V to 7V, an input sensitivity of ±300 mV, and 120 mV typical input hysteresis for enhanced noise immunity. The high-input impedance is a minimum of 12 kΩ.

This line receiver comes in a 16-SOIC package with surface mount mounting type. The 3-state outputs allow direct connection to a bus-organized system. The device also includes active-high and active-low enable functions, contributing to its fail-safe design where outputs remain high if inputs are open.

Designed for improved speed and power consumption compared to previous designs, the SN75ALS197NSR is suitable for applications requiring reliable data transmission over noisy bus lines.