2.5 kVrms Isolated 5 V Half-Duplex RS-485 Transceiver - ISO3082

ISO3082 (ACTIVE)

2.5 kVrms Isolated 5 V Half-Duplex RS-485 Transceiver

 

Description

The ISO3080 and ISO3086 devices are isolated full-duplex differential line drivers and receivers while the ISO3082 and ISO3088 devices are isolated half-duplex differential line transceivers for TIA/EIA 485/422 applications.

These devices are ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 2500 Vrms of isolation for 60s per UL 1577 between the bus-line transceiver and the logic-level interface.

Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or nearby sensitive circuitry if they are of sufficient magnitude and duration. These isolated devices can significantly increase protection and reduce the risk of damage to expensive control circuits.

The ISO3080, ISO3082, ISO3086, and ISO3088 are qualified for use from –40°C to 85°C.

Features

  • Meets or Exceeds TIA/EIA RS-485 Requirements
  • Signaling Rates up to 20 Mbps
  • 1/8 Unit Load – Up to 256 Nodes on a Bus
  • Thermal Shutdown Protection
  • Low Bus Capacitance – 16 pF (Typical)
  • 50 kV/µs Typical Transient Immunity
  • Fail-safe Receiver for Bus Open, Short, Idle
  • 3.3-V Inputs are 5-V Tolerant
  • Bus-Pin ESD Protection
    • 12 kV HBM Between Bus Pins and GND2
    • 6 kV HBM Between Bus Pins and GND1
  • Safety and Regulatory Approvals
    • 4000-VPK Basic Insulation, 560 VPK VIORM
      per DIN V VDE V 0884-10 (VDE V 0884-10):
      2006-12 and DIN EN 61010-1
    • 2500 VRMS Isolation per UL 1577
    • 4000 VPK Isolation per CSA Component
      Acceptance Notice 5A and IEC 60950-1

View more

Parametrics Compare all products in Isolated RS-485 Transceivers

 
UL 1577 Isolation Voltage (Single) (Vrms)
DIN V VDE V 0884-10 Transient Overvoltage Rating (Vpk)
DIN V VDE V 0884-10 Surge Voltage Rating (Vpk)
DIN V VDE V 0884-10 Working Voltage (Vpk)
CSA Isolation Rating (Vrms)
CSA 60950-1 Basic Working (Vrms)
CSA 61010-1 Basic Working (Vrms)
CSA 61010-1 Reinforced Working (Vrms)
Integrated Transformer Driver
Duplex
Datarate (Mbps)
Number of Nodes
ESD (kV)
Fail Safe
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
ISO3082 ISO15 ISO3080 ISO3086 ISO3088 ISO35
2500    2500    2500    2500    2500    2500   
4000    4000    4000    4000    4000    4000   
4000    4000    4000    4000    4000    4000   
560    560    560    560    560    560   
2800    2500    2800    2800    2800    2500   
395    280    395    395    395    280   
N/A    N/A    N/A    N/A    N/A    N/A   
N/A    N/A    N/A    N/A    N/A    N/A   
No    No    No    No    No    No   
Half    Half    Full    Full    Half    Full   
0.2    1    0.2    20    20    1   
256    256    256    256    256    256   
16    16    16    16    16    16   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
Idle
Open
Short   
-40 to 85    -40 to 85
-55 to 125   
-40 to 85    -40 to 85    -40 to 85    -40 to 85
-55 to 125   
16SOIC    16SOIC    16SOIC    16SOIC    16SOIC    16SOIC   
2.60 | 1ku    3.00 | 1ku    2.60 | 1ku    3.00 | 1ku    3.00 | 1ku    3.00 | 1ku