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SN65HVD3082E

ACTIVE

Half-duplex RS-485 transceiver

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Data sheet

SN65HVD3082E

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) 0.2 Fault protection (V) -9 to 14 Common-mode range (V) -7 to 12 Number of nodes 256 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) 0.2 Fault protection (V) -9 to 14 Common-mode range (V) -7 to 12 Number of nodes 256 Isolated No Supply current (max) (µA) 900 Rating Catalog Operating temperature range (°C) -40 to 85
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • Low quiescent power
    • 0.3-mA Active mode
    • 1-nA Shutdown mode
  • 1/8 Unit load up to 256 nodes on a bus
  • Bus-pin ESD protection up to 15 kV
  • Industry-standard SN75176 footprint
  • Fail-safe receiver (bus open, bus shorted, bus idle)
  • Glitch-free power-up and power-down bus inputs and outputs
  • Meets or exceeds the requirements of the TIA/EIA-485A standard
  • Low quiescent power
    • 0.3-mA Active mode
    • 1-nA Shutdown mode
  • 1/8 Unit load up to 256 nodes on a bus
  • Bus-pin ESD protection up to 15 kV
  • Industry-standard SN75176 footprint
  • Fail-safe receiver (bus open, bus shorted, bus idle)
  • Glitch-free power-up and power-down bus inputs and outputs

The SNx5HVD308xE are half-duplex transceivers designed for RS-485 data bus networks. Powered by a 5-V supply, they are fully compliant with TIA/EIA-485A standard. With controlled transition times, these devices are suitable for transmitting data over long twisted-pair cables. The SN65HVD3082E and SN75HVD3082E are optimized for signaling rates up to 200 kbps. The SN65HVD3085E is suitable for data transmission up to 1 Mbps, whereas the SN65HVD3088E is suitable for applications that require signaling rates up to 20 Mbps.

These devices are designed to operate with very low supply current, typically 0.3 mA, exclusive of the load. When in the inactive-shutdown mode, the supply current drops to a few nanoamps, which makes these devices ideal for power-sensitive applications.

The wide common-mode range and high ESD protection levels of these devices, make them suitable for demanding applications such as energy meter networks, electrical inverters, status and command signals across telecom racks, as well as cabled chassis interconnects, and industrial automation networks where noise tolerance is essential. These devices match the industry-standard footprint of the SN75176 device. The power-on-reset circuits keep the outputs in a high-impedance state until the supply voltage has stabilized. A thermal-shutdown function protects the device from damage, due to system fault conditions. The SN75HVD3082E is characterized for operation from 0°C to 70°C and SN65HVD308xE is characterized for operation from –40°C to 85°C air temperature. The D package version of the SN65HVD3082E has been characterized for operation from –40°C to 105°C.

The SNx5HVD308xE are half-duplex transceivers designed for RS-485 data bus networks. Powered by a 5-V supply, they are fully compliant with TIA/EIA-485A standard. With controlled transition times, these devices are suitable for transmitting data over long twisted-pair cables. The SN65HVD3082E and SN75HVD3082E are optimized for signaling rates up to 200 kbps. The SN65HVD3085E is suitable for data transmission up to 1 Mbps, whereas the SN65HVD3088E is suitable for applications that require signaling rates up to 20 Mbps.

These devices are designed to operate with very low supply current, typically 0.3 mA, exclusive of the load. When in the inactive-shutdown mode, the supply current drops to a few nanoamps, which makes these devices ideal for power-sensitive applications.

The wide common-mode range and high ESD protection levels of these devices, make them suitable for demanding applications such as energy meter networks, electrical inverters, status and command signals across telecom racks, as well as cabled chassis interconnects, and industrial automation networks where noise tolerance is essential. These devices match the industry-standard footprint of the SN75176 device. The power-on-reset circuits keep the outputs in a high-impedance state until the supply voltage has stabilized. A thermal-shutdown function protects the device from damage, due to system fault conditions. The SN75HVD3082E is characterized for operation from 0°C to 70°C and SN65HVD308xE is characterized for operation from –40°C to 85°C air temperature. The D package version of the SN65HVD3082E has been characterized for operation from –40°C to 105°C.
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Technical documentation

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Type Title Date
* Data sheet SNx5HVD308xE Low-Power RS-485 Transceivers datasheet (Rev. O) PDF | HTML 13 Jul 2023
EVM User's guide RS-485 Half-Duplex EVM User's Guide (Rev. C) PDF | HTML 01 Sep 2021
Technical article Can your RS-485 communication survive the great outdoors? PDF | HTML 29 Mar 2019
Design guide AC-Coupled RS-485 Design Guide 15 Jun 2016
Design guide Automatic Direction Control RS-485 Design Guide 02 Jun 2016
Technical article Get Connected: The basics of protecting RS-485 against ESD PDF | HTML 23 Oct 2015
Application note RS-485 for E-Meter Applications (Rev. A) 06 Aug 2004

Design & development

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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 (...)
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From: Shenzhen Geedoolink Technology Co., Ltd.
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Simulation model

SN65HVD3082E IBIS Model

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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 (...)
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TIDA-01365 — Bidirectional RS-485 Fan-Out Hub Reference Design

The Bidirectional RS-485 Fan-Out Hub Reference Design (TIDA-01365) documents and tests an RS-485 fan-out hub design where 1:N and N:1 RS-485 signals are aggregated in and out of any bus topology. This design also features automatic direction control, for reduced pin count on microcontrollers, and (...)
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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 (...)
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TIDA-01090 — RS-485 Automatic Direction Control Reference Design

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SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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