ADM4168EBRUZ

The ADM4168E is a dual RS-422 transceiver suitable for high speed communication on point to point and multidrop transmission lines. The ADM4168E is designed for balanced transmission lines and complies with TIA/EIA-422-B. The differential driver outputs and receiver inputs feature electrostatic discharge (ESD) circuitry that provides protection up to ±15 kV human body model (HBM) and ±8 kV IEC 61000-4-2 (contact and air discharge). The ADM4168E operates from a single 5 V power supply. Excessive power dissipation caused by bus contention or output shorting is prevented by short-circuit protection circuitry. Shortcircuit protection circuits limit the maximum output current to -150 mA during fault conditions. The receivers of the ADM4168E contain a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating). The ADM4168E is fully specified over the commercial and industrial temperature ranges and is available in a 16-lead TSSOP package.

Applications

• RS-422 interfaces
• High data rate motor control
• Single-ended to differential signal conversion
• Point to point and multidrop transmission systems

Key features

• Dual RS-422 transceiver for ESD protection on bus input/output pins ±5 kV HBM ±8 kV IEC 61000-4-2, contact discharge ±8 kV IEC 61000-4-2, air discharge
• Complies with TIA/EIA-422-B and ITU-T recommendation V.11
• Open circuit fail-safe
• Suitable for 5 V power supply applications
• Low supply current operation: 9 mA maximum
• Low driver output skew
• Receiver line input resistance: 30 kΩ typical
• Receiver common-mode range: −7 V to +7 V
• Power-up/power-down without glitches
• 16-lead TSSOP package
• Operating temperature range: -40°C to +85°C