Product details

Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (Nom) (V) 3.3 Signaling rate (Max) (Mbps) 20 IEC 61000-4-2 contact (+/- kV) Fault protection (V) -13 to 13 Common mode range -7 to 12 Number of nodes 256 Isolated No ICC (Max) (mA) 0.8 Rating Catalog Operating temperature range (C) -40 to 85
Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (Nom) (V) 3.3 Signaling rate (Max) (Mbps) 20 IEC 61000-4-2 contact (+/- kV) Fault protection (V) -13 to 13 Common mode range -7 to 12 Number of nodes 256 Isolated No ICC (Max) (mA) 0.8 Rating Catalog Operating temperature range (C) -40 to 85
SOIC (D) 14 52 mm² 8.65 x 6
  • 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
  • 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

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.

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.

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Technical documentation

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Type Title Date
* Data sheet Low-Power 3.3V-Supply Full-Duplex RS-485 Driver/Receiver datasheet (Rev. A) 29 Nov 2011
Application note Comparison of Differential-Mode Noise Immunity of RS-485 Recvrs W/3.3-V Supply 29 Nov 2011

Design & development

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Simulation model

SN65HVD37 IBIS Model

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SOIC (D) 14 View options

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