DS3695ATMX

Overview

The DS3695ATMX is a high-speed differential bus transceiver designed for multipoint data transmission on RS-485 and RS-422 networks. It operates on a single +5V supply with a recommended voltage range of 4.75V to 5.25V. The device features one driver and one receiver, supporting data rates up to 10 Mb/s. It provides a wide bus common mode range from -7V to +12V, allowing for significant ground differences between devices. Key electrical parameters include a typical driver propagation delay of 15 ns with 2 ns skew, a receiver hysteresis of 70 mV, and an operating temperature range of 0°C to +70°C.

Feature Summary

• Complies with EIA standard RS-485 for multipoint bus transmission and maintains compatibility with RS-422 standards.
• Features TRI-STATE outputs that remain in a high impedance state over the entire common mode range of +12V to -7V.
• Includes thermal shutdown protection that forces driver outputs into a high impedance state during excessive power dissipation.
• Offers combined driver output and receiver input impedance less than one RS-485 unit load, supporting up to 32 transceivers.

Applications

• Multipoint communication systems requiring RS-485 compliance
• Industrial control networks utilizing RS-422/RS-485 protocols
• Data transmission links with extended common mode voltage requirements

Procurement Notes

Verify the specific suffix 'TM' against official documentation to confirm package type and temperature grade. Confirm current production status as this component family may be subject to discontinuation or lifecycle changes. Ensure the ordering information matches the exact datasheet revision required for your design specifications.

Selection Notes

Select this component when designing half-duplex multipoint buses requiring high noise immunity and extended common mode ranges. Consider the thermal shutdown feature for environments prone to bus faults. Verify that the 0°C to +70°C commercial temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the DS3695 series of multipoint RS-485/RS-422 transceivers manufactured by Texas Instruments. The series includes variants such as the DS3695T, DS3696, and DS3697, which share similar core functionalities but differ in temperature ratings and additional features like repeater capabilities.

Replacement Considerations

DS3695N/NOPB

FAQ

What is the maximum number of transceivers supported on the bus?

The combined impedance of the driver output and receiver input is less than one RS-485 unit load, allowing up to 32 transceivers on the bus.

How does the device handle thermal overload?

Thermal shutdown protection triggers when excessive power dissipation occurs, forcing the driver outputs into a high impedance state to prevent damage.

What is the common mode voltage range?

The device supports a bus common mode range from -7V to +12V, permitting up to ±7V ground difference between devices on the bus.