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SN65HVD82

ACTIVE

5V-Supply RS-485 with IEC ESD Protection

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Data sheet

SN65HVD82

ACTIVE
Data sheet Order now

Product details

Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 0.25 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -18 to 18 Common-mode range (V) -7 to 12 Number of nodes 256 Features IEC ESD protection Isolated No Supply current (max) (µA) 900 Rating Catalog Operating temperature range (°C) -40 to 85
Number of receivers 1 Number of transmitters 1 Duplex Half Supply voltage (nom) (V) 5 Signaling rate (max) (Mbps) 0.25 IEC 61000-4-2 contact (±V) 12000 Fault protection (V) -18 to 18 Common-mode range (V) -7 to 12 Number of nodes 256 Features IEC ESD protection Isolated No Supply current (max) (µA) 900 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Bus I/O Protection
    • ±16-kV HBM Protection
    • ±12-kV IEC61000-4-2 Contact Discharge
    • +4-kV IEC61000-4-4 Fast Transient Burst
  • Industrial Temperature Range –40°C to 85°C
  • Large Receiver Hysteresis (60 mV Typical) for Noise Rejection
  • Low-Power Consumption
    • <1-µA Standby Current
    • <1-mA Quiescent Current
  • Signaling Rate Optimized for 250 kbps
  • Create a Custom Design Using the SN65HVD82 With the WEBENCH® Power Designer
  • Bus I/O Protection
    • ±16-kV HBM Protection
    • ±12-kV IEC61000-4-2 Contact Discharge
    • +4-kV IEC61000-4-4 Fast Transient Burst
  • Industrial Temperature Range –40°C to 85°C
  • Large Receiver Hysteresis (60 mV Typical) for Noise Rejection
  • Low-Power Consumption
    • <1-µA Standby Current
    • <1-mA Quiescent Current
  • Signaling Rate Optimized for 250 kbps
  • Create a Custom Design Using the SN65HVD82 With the WEBENCH® Power Designer

This device has robust drivers and receivers for demanding industrial applications. The bus pins are robust to ESD events, with high levels of protection to Human-Body Model, Air-Gap Discharge, and Contact Discharge specifications.

The device combines a differential driver and a differential receiver, which operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. The device features a wide common-mode voltage range making the device suitable for multi-point applications over long cable runs. The device is characterized from –40°C to 85°C.

This device has robust drivers and receivers for demanding industrial applications. The bus pins are robust to ESD events, with high levels of protection to Human-Body Model, Air-Gap Discharge, and Contact Discharge specifications.

The device combines a differential driver and a differential receiver, which operate from a single 5-V power supply. The driver differential outputs and the receiver differential inputs are connected internally to form a bus port suitable for half-duplex (two-wire bus) communication. The device features a wide common-mode voltage range making the device suitable for multi-point applications over long cable runs. The device is characterized from –40°C to 85°C.
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Technical documentation

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Type Title Date
* Data sheet SN65HVD82 Robust RS-485 Transceiver datasheet (Rev. B) PDF | HTML 01 Nov 2017
EVM User's guide RS-485 Half-Duplex EVM User's Guide (Rev. C) PDF | HTML 01 Sep 2021
Technical article How to calculate the power dissipation of high-speed RS-485 transceivers PDF | HTML 14 Jun 2018
Technical article Get Connected: The basics of protecting RS-485 against ESD PDF | HTML 23 Oct 2015
Analog Design Journal Correcting cross-wire faults in modern e-metering networks 28 Oct 2013
Analog Design Journal 2Q 2013 Issue Analog Applications Journal 16 Apr 2013
Analog Design Journal RS-485 failsafe biasing: Old versus new transceivers 16 Apr 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

RS485-HF-DPLX-EVM — RS-485 half-duplex evaluation module

The RS-485 half-duplex evaluation module (EVM) helps designers evaluate device performance, supporting fast development and analysis of data-transmission systems using any of the SN65HVD1x, SN65HVD2x, SN65HVD7x, SN65HVD8x and SN65HVD96 half-duplex transceivers. The EVM board comes without the (...)
User guide: PDF | HTML
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Evaluation board

SN65HVD72EVM — SN65HVD72EVM evaluation module

The SN65HVD72EVM evaluation module (EVM) helps you evaluate device performance, supporting fast development and analysis of data transmission systems using the SN65HVD72, SN65HVD75 and SN65HVD78 transceivers. The EVM board comes with the SN65HVD75 (20 Mbps) device soldered to the board. (...)

User guide: PDF
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Simulation model

SN65HVD82 IBIS Model

SLLM198.ZIP (45 KB) - IBIS Model
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Reference designs

TIDA-00730 — RS-485 IEC ESD Reference Design

The TIDA-00730 is an reference design examining how to protect an RS-485 bus against leathal transient waveforms such as IEC ESD, IEC EFT, and IEC surge. The reference design shows the level of protection that can be achieved through the implementation of a TVS diode on the bus lines of a standard (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00731 — IEC ESD, EFT, and Surge Protected RS-485 Reference Design

The TIDA-00731 is a reference design examining how to protect an RS-485 bus against lethal transient waveforms such as IEC ESD, IEC EFT, and IEC surge. The reference design shows the level of protection that can be achieved through the implementation of an external protection scheme on the bus (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00527 — RS-485 Power Over Bus Reference Design

This design demonstrates the implementation of a buspowered RS-485 application and allows to evaluate different filters for the DC power. This saves the cost and space for a separate power wiring.

A new preferred approach by using On-off key modulation to transmit RS-485 signals over power line is (...)

Design guide: PDF
Schematic: PDF
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