SN65HVD37

SN65HVD37 www.ti.com SLLSE92 A – OCTOBER 2011 – REVISED NOVEMBER 2011 Low-Power 3.3V-Supply Full-Duplex RS-485 Driver/Receiver Check for Samples: SN65HVD37 FEATURES 1 Low-Current Standby Mode: <1 μA Typical Operational Quiescent Current < 1 mA High Receiver Hysteresis for Noise Immunity (60 mV Typical) 1/8 Unit-Load (Up to 256 Nodes on the Bus) Bus-pin ESD Protection Exceeds 15 kV HBM Driver Output Transition Times Optimized for Signaling Rate up to 20 Mbps Glitch-Free Power-Up and Power-Down Protection for Hot-Plugging Applications 5V-Tolerant Logic Inputs Bus Idle, Open, and Short-Circuit Failsafe Driver Current Limiting and Thermal Shutdown Fully Meets All TIA-485-A Specifications APPLICATIONS Telecommunications Equipment Industrial Automation Process Automation Building Automation Point-of-Sale (POS) Terminals Improved Replacement for ADM3076, ADM3491, LTC2852, MAX3491 and SP3491 DESCRIPTION The SN65HVD37 combines a robust differential driver and a receiver with high noise immunity for demanding industrial applications. The driver differential outputs and the receiver differential inputs are separate pins, to form a bus port for full-duplex (four-wire) communications. The driver and receiver can be independently enabled, and feature a wide common-mode voltage range, making this device suitable for multi-point applications over long cable runs. The SN65HVD37 is characterized over the temperature range of -40ºC to 85 ºC. D PACKAGE (TOP...