DS3695ATM/NOPB Datasheet

RS-422/RS-485 Interface IC


The DS3695ATM/NOPB is high speed differential TRI-STATE bus/line transceivers/repeaters designed to meet the requirements of EIA standard RS485 with extended common mode range (+12V to -7V), for multipoint data transmission. The driver and receiver outputs feature TRI-STATE capability. The driver outputs remain in TRI-STATE over the entire common mode range of +12V to -7V. Bus faults that cause excessive power dissipation within the device trigger a thermal shutdown circuit, which forces the driver outputs into the high impedance state. The DS3696 provides an output pin TS (thermal shutdown) which reports the occurrence of the thermal shutdown of the device. This is an "open collector" pin with an internal 10 kQ pull-up resistor. This allows the line fault outputs of several devices to be wire OR-ed. Both AC and DC specifications are specified over the 0℃ to 70℃ temperature and 4.75V to 5.25V supply voltage range. DS3695ATM/NOPB Features • Meets EIA standard RS485 for Multipoint Bus Transmission and is Compatible with RS-422• 15 ns Driver Propagation Delays with 2 ns Skew (Typical)• Single +5V supply• -7V to +12V Bus Common Mode Range Permits 17V Ground Difference Between Devices on the Bus• Thermal Shutdown Protection• High Impedance to Bus with Driver in TRI- STATE or with Power Off, Over the Entire Common Mode Range Allows the Unused Devices on the Bus to be Powered Down• Combined Impedance of a Driver Output and Receiver Input is Less than one RS485 Unit Load, Allowing up to 32 Transceivers on the Bus• 70 mV Typical Receiver Hysteresis


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Manufacturer information


Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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